--
h1'Clrogen helium
1 2
H He
1.0079 4.0026
lithium beryllium boron carton nitrOJen oxygen fluori ne neon
3 4 5 6 7 8 9 10
Li Be B C N 0 F Ne
6.941 9.0122 10.811 12.011 14.007 15.999 18.998 20.180
sodium magnes1um aluminium silicon phosphorus sulfur chlorine argon
11 12 13 14 15 16 17 18
Na Mg Al Si p s Cl Ar
22.990 24.305 26.982 28.086 30.974 32.065 35.453 39.948
potassium calcium scandium titanium vanadium chromium manganese iron cobalt nickel copper zinc gallium germanium arsenic selenium bromine krypton
19 20 21 22 23 24 25 26 27 28 29 30 31 32 33
34
35
36
K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr
39.098 40.078 44.956 47.867 50.942 51.996 54.938 55.845 58.933 58.693 63.546 65.39 69.723 72.61 74.922 78.96 79.904 83.80
rubidium strontium yttrium zirconium niobium molybdenum technetium ruthenium rhoclium palladium si lver cadmium indium tin antimony tellurium iodine xenon
37
38 39 40 41 42
43
44
45
46
47
48 49 50 51 52
53
54
Rb Sr y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I Xe
85.468 87.62 88.906 91.224 92.906
95.94
1981 101.07 102.91 106.42 107.87 112.41 114.82 118.71 121.76 127.60 126.90 131.29
caesium barium lutetium hafnium tantalum tungsten rhenium osmium iridium platinum gold mercury thallium lead bismuth polonium astatine radon
55
56 57-70 71 72 73 74
75
76 77 78
79
80 81 82 83 84 85 86
Cs Ba * Lu Hf Ta w Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn
132.91 137.33 174.97 178.49 180.95 183.84 186.21 190.23 192.22 195.08 196.97 200.59 204.38 207.2 208.98 12091 1210! 12221
francium radium lawrencium rutherfordium dubnium seaborgium bohrium hassium meitnerium ununnllium unununium ununbium ununquadium
87 88 89-102 103 104 105 106 107 108 109 110 111 112 114
Fr Ra ** Lr Rf Db Sg Bh Hs Mt Uun Uuu Uub Uuq
12231 12261 12621 12611 12621 12661 12641 12691 12681 12711 12721 12771 12891
lanthanum cerium
praseodymiurr
neodymium promethium samarium europium gadolinium terbium dysprosium holmium erbium thulium ytterbium
*Lanthanide series 57 58 59 60 61 62 63 64 65 66 67 68 69 70
La Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb
138.91 140.12 140.91 144.24 11451 150.36 151.96 157.25 158.93 162.50 164.93 167.26 168.93 173.04
actinium thorium protactinium uranium neptunium plutonium americium curium berkelium californium einsteinium fermium mendelevium nobelium
**Actinide series 89 90 91 92
93
94
95 96 97 98 99 100 101 102
Ac Th Pa u Np Pu Am Cm Bk Cf Es Fm Md No
12271 232.04 231.04 238.03 12371 12441 12431 12471 12471 12511 12521 12571 12581 12591
A
vogadro
'
s number
=
6.02
x
1023
