actiniumA 'mass' thing this a chemical element of symbol Ac, atomic number 89, and atomic weight ()last updated 15 Feb 2015 http://en.wikipedia.org/wiki/Actiniumlast updated 15 Feb 2015
aluminiumA 'mass' thing this a chemical element of symbol Al, atomic number 13, and atomic weight 26.98.last updated 15 Feb 2015 http://en.wikipedia.org/wiki/Aluminiumlast updated 15 Feb 2015
aluminumA 'mass' thing this a chemical element of symbol Al, atomic number 13, and atomic weight 26.98.last updated 15 Feb 2015 http://en.wikipedia.org/wiki/Aluminiumlast updated 15 Feb 2015
americiumA 'mass' thing this a chemical element of symbol Am, atomic number 95, and atomic weight ().last updated 15 Feb 2015 http://en.wikipedia.org/wiki/Americiumlast updated 15 Feb 2015
antimonyA 'mass' thing this a chemical element of symbol Sb, atomic number 51, and atomic weight 121.8.last updated 15 Feb 2015 http://en.wikipedia.org/wiki/Antimonylast updated 15 Feb 2015
argonA 'mass' thing this a chemical element of symbol Ar, atomic number 18, and atomic weight 39.95.last updated 15 Feb 2015 http://en.wikipedia.org/wiki/Argonlast updated 15 Feb 2015
arsenicA 'mass' thing this a chemical element of symbol As, atomic number 33, and atomic weight 74.92.last updated 15 Feb 2015 http://en.wikipedia.org/wiki/Arseniclast updated 15 Feb 2015
astatineA 'mass' thing this a chemical element of symbol At, atomic number 85, and atomic weight ().last updated 15 Feb 2015 http://en.wikipedia.org/wiki/Astatinelast updated 15 Feb 2015
bariumA 'mass' thing this a chemical element of symbol Ba, atomic number 56, and atomic weight 137.3.last updated 15 Feb 2015 http://en.wikipedia.org/wiki/Bariumlast updated 15 Feb 2015
berkeliumA 'mass' thing this a chemical element of symbol Bk, atomic number 97, and atomic weight ().last updated 15 Feb 2015 http://en.wikipedia.org/wiki/Berkeliumlast updated 15 Feb 2015
berylliumA 'mass' thing this a chemical element of symbol Be, atomic number 4, and atomic weight 9.012.last updated 15 Feb 2015 http://en.wikipedia.org/wiki/Berylliumlast updated 15 Feb 2015
bismuthA 'mass' thing this a chemical element of symbol Bi, atomic number 83, and atomic weight 209.0.last updated 15 Feb 2015 http://en.wikipedia.org/wiki/Bismuthlast updated 15 Feb 2015
bohriumA 'mass' thing this a chemical element of symbol Bh, atomic number 107, and atomic weight ().last updated 15 Feb 2015 http://en.wikipedia.org/wiki/Bohriumlast updated 15 Feb 2015
boronA 'mass' thing this a chemical element of symbol B, atomic number 5, and atomic weight [10.80, 10.83].last updated 15 Feb 2015 http://en.wikipedia.org/wiki/Boronlast updated 15 Feb 2015
bromineA 'mass' thing this a chemical element of symbol Br, atomic number 35, and atomic weight [79.90, 79.91].last updated 15 Feb 2015 http://en.wikipedia.org/wiki/Brominelast updated 15 Feb 2015
cadmiumA 'mass' thing this a chemical element of symbol Cd, atomic number 48, and atomic weight 112.4.last updated 15 Feb 2015 http://en.wikipedia.org/wiki/Cadmiumlast updated 15 Feb 2015
caesiumA 'mass' thing this a chemical element of symbol Cs, atomic number 55, and atomic weight 132.9.last updated 15 Feb 2015 http://en.wikipedia.org/wiki/Caesiumlast updated 15 Feb 2015
calciumA 'mass' thing this a chemical element of symbol Ca, atomic number 20, and atomic weight 40.08.last updated 15 Feb 2015 http://en.wikipedia.org/wiki/Calciumlast updated 15 Feb 2015
californiumA 'mass' thing this a chemical element of symbol Cf, atomic number 98, and atomic weight ().last updated 15 Feb 2015 http://en.wikipedia.org/wiki/Californiumlast updated 15 Feb 2015
carbonA 'mass' thing this a chemical element of symbol C, atomic number 6, and atomic weight [12.00, 12.02].last updated 15 Feb 2015 http://en.wikipedia.org/wiki/Carbonlast updated 15 Feb 2015
ceriumA 'mass' thing this a chemical element of symbol Ce, atomic number 58, and atomic weight 140.1.last updated 15 Feb 2015 http://en.wikipedia.org/wiki/Ceriumlast updated 15 Feb 2015
cesiumA 'mass' thing this a chemical element of symbol Cs, atomic number 55, and atomic weight 132.9.last updated 15 Feb 2015 http://en.wikipedia.org/wiki/Caesiumlast updated 15 Feb 2015
chlorineA 'mass' thing this a chemical element of symbol Cl, atomic number 17, and atomic weight [35.44, 35.46].last updated 15 Feb 2015 http://en.wikipedia.org/wiki/Chlorinelast updated 15 Feb 2015
chromiumA 'mass' thing this a chemical element of symbol Cr, atomic number 24, and atomic weight 52.00.last updated 15 Feb 2015 http://en.wikipedia.org/wiki/Chromiumlast updated 15 Feb 2015
cobaltA 'mass' thing this a chemical element of symbol Co, atomic number 27, and atomic weight 58.93.last updated 15 Feb 2015 http://en.wikipedia.org/wiki/Cobaltlast updated 15 Feb 2015
coperniciumA 'mass' thing this a chemical element of symbol Cn, atomic number 112, and atomic weight ().last updated 15 Feb 2015 http://en.wikipedia.org/wiki/Coperniciumlast updated 15 Feb 2015
copperA 'mass' thing this a chemical element of symbol Cu, atomic number 29, and atomic weight (63.55).last updated 15 Feb 2015 http://en.wikipedia.org/wiki/Copperlast updated 15 Feb 2015
curiumA 'mass' thing this a chemical element of symbol Cm, atomic number 96, and atomic weight ().last updated 15 Feb 2015 http://en.wikipedia.org/wiki/Curiumlast updated 15 Feb 2015
darmstadtiumA 'mass' thing this a chemical element of symbol Ds, atomic number 110, and atomic weight ().last updated 15 Feb 2015 http://en.wikipedia.org/wiki/Darmstadtiumlast updated 15 Feb 2015
dubniumA 'mass' thing this a chemical element of symbol Db, atomic number 105, and atomic weight ().last updated 15 Feb 2015 http://en.wikipedia.org/wiki/Dubniumlast updated 15 Feb 2015
dysprosiumA 'mass' thing this a chemical element of symbol Dy, atomic number 66, and atomic weight 162.5.last updated 15 Feb 2015 http://en.wikipedia.org/wiki/Dysprosiumlast updated 15 Feb 2015
einsteiniumA 'mass' thing this a chemical element of symbol Es, atomic number 99, and atomic weight ().last updated 15 Feb 2015 http://en.wikipedia.org/wiki/Einsteiniumlast updated 15 Feb 2015
erbiumA 'mass' thing this a chemical element of symbol Er, atomic number 68, and atomic weight 167.3.last updated 15 Feb 2015 http://en.wikipedia.org/wiki/Erbiumlast updated 15 Feb 2015
europiumA 'mass' thing this a chemical element of symbol Eu, atomic number 63, and atomic weight 152.last updated 15 Feb 2015 http://en.wikipedia.org/wiki/Europiumlast updated 15 Feb 2015
fermiumA 'mass' thing this a chemical element of symbol Fm, atomic number 100, and atomic weight ().last updated 15 Feb 2015 http://en.wikipedia.org/wiki/Fermiumlast updated 15 Feb 2015
fleroviumA 'mass' thing this a chemical element of symbol Fl, atomic number 114, and atomic weight ().last updated 15 Feb 2015 http://en.wikipedia.org/wiki/Fleroviumlast updated 15 Feb 2015
fluorineA 'mass' thing this a chemical element of symbol F, atomic number 9, and atomic weight 19.00.last updated 15 Feb 2015 http://en.wikipedia.org/wiki/Fluorinelast updated 15 Feb 2015
franciumA 'mass' thing this a chemical element of symbol Fr, atomic number 87, and atomic weight ().last updated 15 Feb 2015 http://en.wikipedia.org/wiki/Franciumlast updated 15 Feb 2015
gadoliniumA 'mass' thing this a chemical element of symbol Gd, atomic number 64, and atomic weight 157.3.last updated 15 Feb 2015 http://en.wikipedia.org/wiki/Gadoliniumlast updated 15 Feb 2015
galliumA 'mass' thing this a chemical element of symbol Ga, atomic number 31, and atomic weight 69.72.last updated 15 Feb 2015 http://en.wikipedia.org/wiki/Galliumlast updated 15 Feb 2015
germaniumA 'mass' thing this a chemical element of symbol Ge, atomic number 32, and atomic weight 72.63.last updated 15 Feb 2015 http://en.wikipedia.org/wiki/Germaniumlast updated 15 Feb 2015
goldA 'mass' thing this a chemical element of symbol Au, atomic number 79, and atomic weight 197.0.last updated 15 Feb 2015 http://en.wikipedia.org/wiki/Goldlast updated 15 Feb 2015
hafniumA 'mass' thing this a chemical element of symbol Hf, atomic number 72, and atomic weight 178.5.last updated 15 Feb 2015 http://en.wikipedia.org/wiki/Hafniumlast updated 15 Feb 2015
hassiumA 'mass' thing this a chemical element of symbol Hs, atomic number 108, and atomic weight ().last updated 15 Feb 2015 http://en.wikipedia.org/wiki/Hassiumlast updated 15 Feb 2015
heliumA 'mass' thing this a chemical element of symbol He, atomic number 2, and atomic weight 4.003.last updated 15 Feb 2015 http://en.wikipedia.org/wiki/Heliumlast updated 15 Feb 2015
holmiumA 'mass' thing this a chemical element of symbol Ho, atomic number 67, and atomic weight 164.9.last updated 15 Feb 2015 http://en.wikipedia.org/wiki/Holmiumlast updated 15 Feb 2015
hydrogenA 'mass' thing this a chemical element of symbol H, atomic number 1, and atomic weight [1.007, 1.009].last updated 15 Feb 2015 http://en.wikipedia.org/wiki/Hydrogenlast updated 15 Feb 2015
indiumA 'mass' thing this a chemical element of symbol In, atomic number 49, and atomic weight 114.8.last updated 15 Feb 2015 http://en.wikipedia.org/wiki/Indiumlast updated 15 Feb 2015
iodineA 'mass' thing this a chemical element of symbol I, atomic number 53, and atomic weight 126.9.last updated 15 Feb 2015 http://en.wikipedia.org/wiki/Iodinelast updated 15 Feb 2015
iridiumA 'mass' thing this a chemical element of symbol Ir, atomic number 77, and atomic weight 192.2.last updated 15 Feb 2015 http://en.wikipedia.org/wiki/Iridiumlast updated 15 Feb 2015
ironA 'mass' thing this a chemical element of symbol Fe, atomic number 26, and atomic weight 55.85.last updated 15 Feb 2015 http://en.wikipedia.org/wiki/Ironlast updated 15 Feb 2015
kryptonA 'mass' thing this a chemical element of symbol Kr, atomic number 36, and atomic weight 83.8.last updated 15 Feb 2015 http://en.wikipedia.org/wiki/Kryptonlast updated 15 Feb 2015
lanthanumA 'mass' thing this a chemical element of symbol La, atomic number 57, and atomic weight 138.9.last updated 15 Feb 2015 http://en.wikipedia.org/wiki/Lanthanumlast updated 15 Feb 2015
lawrenciumA 'mass' thing this a chemical element of symbol Lr, atomic number 103, and atomic weight ().last updated 15 Feb 2015 http://en.wikipedia.org/wiki/Lawrenciumlast updated 15 Feb 2015
leadA 'mass' thing this a chemical element of symbol Pb, atomic number 82, and atomic weight 207.2.last updated 15 Feb 2015 http://en.wikipedia.org/wiki/Leadlast updated 15 Feb 2015
lithiumA 'mass' thing this a chemical element of symbol Li, atomic number 3, and atomic weight [6.938, 6.997].last updated 15 Feb 2015 http://en.wikipedia.org/wiki/Lithiumlast updated 15 Feb 2015
livermoriumA 'mass' thing this a chemical element of symbol Lv, atomic number 116, and atomic weight ().last updated 16 Feb 2015 http://en.wikipedia.org/wiki/Livermoriumlast updated 16 Feb 2015
lutetiumA 'mass' thing this a chemical element of symbol Lu, atomic number 71, and atomic weight 175.0.last updated 16 Feb 2015 http://en.wikipedia.org/wiki/Lutetiumlast updated 16 Feb 2015
magnesiumA 'mass' thing this a chemical element of symbol Mg, atomic number 12, and atomic weight [24.30,24.31].last updated 16 Feb 2015 http://en.wikipedia.org/wiki/Magnesiumlast updated 16 Feb 2015
manganeseA 'mass' thing this a chemical element of symbol Mn, atomic number 25, and atomic weight 54.94.last updated 16 Feb 2015 http://en.wikipedia.org/wiki/Manganeselast updated 16 Feb 2015
meitneriumA 'mass' thing this a chemical element of symbol Mt, atomic number 109, and atomic weight ().last updated 16 Feb 2015 http://en.wikipedia.org/wiki/Meitneriumlast updated 16 Feb 2015
mendeleviumA 'mass' thing this a chemical element of symbol Md, atomic number 101, and atomic weight ().last updated 16 Feb 2015 http://en.wikipedia.org/wiki/Mendeleviumlast updated 16 Feb 2015
mercuryA 'mass' thing this a chemical element of symbol Hg, atomic number 80, and atomic weight 200.6.last updated 16 Feb 2015 http://en.wikipedia.org/wiki/Mercurylast updated 16 Feb 2015
molybdenumA 'mass' thing this a chemical element of symbol Mo, atomic number 42, and atomic weight 95.96(2).last updated 16 Feb 2015 http://en.wikipedia.org/wiki/Molybdenumlast updated 16 Feb 2015
neodymiumA 'mass' thing this a chemical element of symbol Nd, atomic number 60, and atomic weight 144.2.last updated 16 Feb 2015 http://en.wikipedia.org/wiki/Neodymiumlast updated 16 Feb 2015
neonA 'mass' thing this a chemical element of symbol Ne, atomic number 10, and atomic weight 20.18.last updated 16 Feb 2015 http://en.wikipedia.org/wiki/Neonlast updated 16 Feb 2015
neptuniumA 'mass' thing this a chemical element of symbol Np, atomic number 93, and atomic weight ().last updated 16 Feb 2015 http://en.wikipedia.org/wiki/Neptuniumlast updated 16 Feb 2015
nickelA 'mass' thing this a chemical element of symbol Np, atomic number 93, and atomic weight 58.69.last updated 16 Feb 2015 http://en.wikipedia.org/wiki/Nickellast updated 16 Feb 2015
niobiumA 'mass' thing this a chemical element of symbol Nb, atomic number 41, and atomic weight 92.91.last updated 16 Feb 2015 http://en.wikipedia.org/wiki/Niobiumlast updated 16 Feb 2015
nitrogenA 'mass' thing this a chemical element of symbol N, atomic number 7, and atomic weight [14.00, 14.01].last updated 16 Feb 2015 http://en.wikipedia.org/wiki/Nitrogenlast updated 16 Feb 2015
nobeliumA 'mass' thing this a chemical element of symbol No, atomic number 102, and atomic weight ().last updated 16 Feb 2015 http://en.wikipedia.org/wiki/Nobeliumlast updated 16 Feb 2015
osmiumA 'mass' thing this a chemical element of symbol Os, atomic number 76, and atomic weight 190.2.last updated 16 Feb 2015 http://en.wikipedia.org/wiki/Osmiumlast updated 16 Feb 2015
oxygenA 'mass' thing this a chemical element of symbol O, atomic number 8, and atomic weight [15.99, 16].last updated 16 Feb 2015 http://en.wikipedia.org/wiki/Oxygenlast updated 16 Feb 2015
palladiumA 'mass' thing this a chemical element of symbol Pd, atomic number 46, and atomic weight 106.4.last updated 16 Feb 2015 http://en.wikipedia.org/wiki/Palladiumlast updated 16 Feb 2015
phosphorusA 'mass' thing this a chemical element of symbol P, atomic number 15, and atomic weight 30.97.last updated 16 Feb 2015 http://en.wikipedia.org/wiki/Phosphoruslast updated 16 Feb 2015
platinumA 'mass' thing this a chemical element of symbol Pt, atomic number 78, and atomic weight 195.1.last updated 16 Feb 2015 http://en.wikipedia.org/wiki/Platinumlast updated 16 Feb 2015
plutoniumA 'mass' thing this a chemical element of symbol Pu, atomic number 94, and atomic weight ().last updated 16 Feb 2015 http://en.wikipedia.org/wiki/Plutoniumlast updated 16 Feb 2015
poloniumA 'mass' thing this a chemical element of symbol Po, atomic number 84, and atomic weight ().last updated 16 Feb 2015 http://en.wikipedia.org/wiki/Poloniumlast updated 16 Feb 2015
potassiumA 'mass' thing this a chemical element of symbol K, atomic number 19, and atomic weight 39.10.last updated 16 Feb 2015 http://en.wikipedia.org/wiki/Potassiumlast updated 16 Feb 2015
praseodymiumA 'mass' thing this a chemical element of symbol Pr, atomic number 59, and atomic weight 140.9.last updated 16 Feb 2015 http://en.wikipedia.org/wiki/Praseodymiumlast updated 16 Feb 2015
promethiumA 'mass' thing this a chemical element of symbol Pm, atomic number 61, and atomic weight ().last updated 16 Feb 2015 http://en.wikipedia.org/wiki/Promethiumlast updated 16 Feb 2015
protactiniumA 'mass' thing this a chemical element of symbol Pa, atomic number 91, and atomic weight 231.0.last updated 16 Feb 2015 http://en.wikipedia.org/wiki/Protactiniumlast updated 16 Feb 2015
radiumA 'mass' thing this a chemical element of symbol Ra, atomic number 88, and atomic weight ().last updated 16 Feb 2015 http://en.wikipedia.org/wiki/Radiumlast updated 16 Feb 2015
radonA 'mass' thing this a chemical element of symbol Rn, atomic number 86, and atomic weight ().last updated 16 Feb 2015 http://en.wikipedia.org/wiki/Radonlast updated 16 Feb 2015
rheniumA 'mass' thing this a chemical element of symbol Re, atomic number 75, and atomic weight 186.2.last updated 16 Feb 2015 http://en.wikipedia.org/wiki/Rheniumlast updated 16 Feb 2015
rhodiumA 'mass' thing this a chemical element of symbol Rh, atomic number 45, and atomic weight 102.9.last updated 16 Feb 2015 http://en.wikipedia.org/wiki/Rhodiumlast updated 16 Feb 2015
roentgeniumA 'mass' thing this a chemical element of symbol Rg, atomic number 111, and atomic weight ().last updated 16 Feb 2015 http://en.wikipedia.org/wiki/Roentgeniumlast updated 16 Feb 2015
rubidiumA 'mass' thing this a chemical element of symbol Rb, atomic number 37, and atomic weight 85.47.last updated 16 Feb 2015 http://en.wikipedia.org/wiki/Rubidiumlast updated 16 Feb 2015
rutheniumA 'mass' thing this a chemical element of symbol Ru, atomic number 44, and atomic weight 101.1.last updated 16 Feb 2015 http://en.wikipedia.org/wiki/Rutheniumlast updated 16 Feb 2015
rutherfordiumA 'mass' thing this a chemical element of symbol Rf, atomic number 104, and atomic weight ().last updated 16 Feb 2015 http://en.wikipedia.org/wiki/Rutherfordiumlast updated 16 Feb 2015
samariumA 'mass' thing this a chemical element of symbol Sm, atomic number 62, and atomic weight 150.4.last updated 16 Feb 2015 http://en.wikipedia.org/wiki/Samariumlast updated 16 Feb 2015
scandiumA 'mass' thing this a chemical element of symbol Sc, atomic number 21, and atomic weight 44.96.last updated 16 Feb 2015 http://en.wikipedia.org/wiki/Scandiumlast updated 16 Feb 2015
seaborgiumA 'mass' thing this a chemical element of symbol Sg, atomic number 106, and atomic weight ().last updated 16 Feb 2015 http://en.wikipedia.org/wiki/Seaborgiumlast updated 16 Feb 2015
seleniumA 'mass' thing this a chemical element of symbol Se, atomic number 34, and atomic weight 78.96(3).last updated 16 Feb 2015 http://en.wikipedia.org/wiki/Seleniumlast updated 16 Feb 2015
siliconA 'mass' thing this a chemical element of symbol Si, atomic number 14, and atomic weight [28.08, 28.09].last updated 16 Feb 2015 http://en.wikipedia.org/wiki/Siliconlast updated 16 Feb 2015
silverA 'mass' thing this a chemical element of symbol Ag, atomic number 47, and atomic weight 107.9.last updated 16 Feb 2015 http://en.wikipedia.org/wiki/Silverlast updated 16 Feb 2015
sodiumA 'mass' thing this a chemical element of symbol Na, atomic number 11, and atomic weight 22.99.last updated 16 Feb 2015 http://en.wikipedia.org/wiki/Sodiumlast updated 16 Feb 2015
strontiumA 'mass' thing this a chemical element of symbol Sr, atomic number 38, and atomic weight 87.62.last updated 16 Feb 2015 http://en.wikipedia.org/wiki/Strontiumlast updated 16 Feb 2015
sulfurA 'mass' thing this a chemical element of symbol S, atomic number 16, and atomic weight [32.05, 32.08].last updated 16 Feb 2015 http://en.wikipedia.org/wiki/Sulfurlast updated 16 Feb 2015
tantalumA 'mass' thing this a chemical element of symbol Ta, atomic number 73, and atomic weight 180.9.last updated 16 Feb 2015 http://en.wikipedia.org/wiki/Tantalumlast updated 16 Feb 2015
technetiumA 'mass' thing this a chemical element of symbol Tc, atomic number 43, and atomic weight ().last updated 16 Feb 2015 http://en.wikipedia.org/wiki/Technetiumlast updated 16 Feb 2015
telluriumA 'mass' thing this a chemical element of symbol Te, atomic number 52, and atomic weight 127.6.last updated 16 Feb 2015 http://en.wikipedia.org/wiki/Telluriumlast updated 16 Feb 2015
terbiumA 'mass' thing this a chemical element of symbol Tb, atomic number 65, and atomic weight 158.9.last updated 16 Feb 2015 http://en.wikipedia.org/wiki/Terbiumlast updated 16 Feb 2015
thalliumA 'mass' thing this a chemical element of symbol Tl, atomic number 81, and atomic weight [204.3, 204.4].last updated 16 Feb 2015 http://en.wikipedia.org/wiki/Thalliumlast updated 16 Feb 2015
thoriumA 'mass' thing this a chemical element of symbol Th, atomic number 90, and atomic weight 232.0.last updated 16 Feb 2015 http://en.wikipedia.org/wiki/Thoriumlast updated 16 Feb 2015
thuliumA 'mass' thing this a chemical element of symbol Tm, atomic number 69, and atomic weight 168.9.last updated 16 Feb 2015 http://en.wikipedia.org/wiki/Thuliumlast updated 16 Feb 2015
tinA 'mass' thing this a chemical element of symbol Sn, atomic number 50, and atomic weight 118.7.last updated 16 Feb 2015 http://en.wikipedia.org/wiki/Tinlast updated 16 Feb 2015
titaniumA 'mass' thing this a chemical element of symbol Ti, atomic number 22, and atomic weight 47.87.last updated 16 Feb 2015 http://en.wikipedia.org/wiki/Titaniumlast updated 16 Feb 2015
tungstenA 'mass' thing this a chemical element of symbol W, atomic number 74, and atomic weight 183.8.last updated 16 Feb 2015 http://en.wikipedia.org/wiki/Tungstenlast updated 16 Feb 2015
uraniumA 'mass' thing this a chemical element of symbol U, atomic number 92, and atomic weight 238last updated 16 Feb 2015 http://en.wikipedia.org/wiki/Uraniumlast updated 16 Feb 2015
vanadiumA 'mass' thing this a chemical element of symbol V, atomic number 23, and atomic weight 50.94last updated 16 Feb 2015 http://en.wikipedia.org/wiki/Vanadiumlast updated 16 Feb 2015
xenonA 'mass' thing this a chemical element of symbol Xe, atomic number 54, and atomic weight 131.3last updated 16 Feb 2015 http://en.wikipedia.org/wiki/Xenonlast updated 16 Feb 2015
ytterbiumA 'mass' thing this a chemical element of symbol Xb, atomic number 70, and atomic weight 173.1last updated 16 Feb 2015 http://en.wikipedia.org/wiki/Ytterbiumlast updated 16 Feb 2015
yttriumA 'mass' thing this a chemical element of symbol Y, atomic number 39, and atomic weight 88.91last updated 16 Feb 2015 http://en.wikipedia.org/wiki/Yttriumlast updated 16 Feb 2015
zincA 'mass' thing this a chemical element of symbol Zn, atomic number 30, and atomic weight 65.38(2)last updated 16 Feb 2015 http://en.wikipedia.org/wiki/Zinclast updated 16 Feb 2015
zirconiumA 'mass' thing this a chemical element of symbol Zr, atomic number 40, and atomic weight 91.22last updated 16 Feb 2015 http://en.wikipedia.org/wiki/Zirconiumlast updated 16 Feb 2015