Periodic Table

A Periodic Table of the Elements at Los Alamos National Laboratory

Los Alamos National Laboratory's Chemistry Division Presents

Periodic Table of the Elements
A Resource for Elementary, Middle School, and High School Students

Click an element for more information:
Group** Period
1 IA 1A
1

18
VIIIA

8A 2 IIA 2A
4 2 13 14 15 16 17 IIIA IVA VA VIA VIIA He 3A 4A 5A 6A 7A 4.003 5 6 7 8 9 10

1

H
1.008 3

2

Li Be
6.941 11 9.012 12

B C N O F Ne
10.81 12.01 14.01 16.00 19.00 20.18

3

8 9 10 11 12 13 14 15 16 17 18 3 4 5 6 7 Na Mg IIIB IVB VB VIB VIIB ------- VIII ------ IB IIB Al Si P S Cl Ar 1B 2B 26.98 28.09 30.97 32.07 35.45 39.95 22.99 24.31 3B 4B 5B 6B 7B ------- 8 ------19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36

4

K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr
39.10 37 40.08 38 44.96 47.88 50.94 52.00 54.94 55.85 58.47 58.69 63.55 65.39 69.72 72.59 74.92 78.96 79.90 83.80 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54

5

Rb Sr
85.47 55 87.62 56

Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I Xe
88.91 91.22 92.91 95.94 (98) 101.1 102.9 106.4 107.9 112.4 114.8 118.7 121.8 127.6 126.9 131.3 57 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86

6

Cs Ba La* Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn
132.9 87 137.3 88 138.9 178.5 180.9 183.9 186.2 190.2 190.2 195.1 197.0 200.5 204.4 207.2 209.0 (210) (210) (222) 89 104 105 106 107 108 109 110 111 112 114 116 118

7

Fr Ra Ac~ Rf Db Sg Bh Hs Mt --- --- --(223) (226) (227) (257) (260) (263) (262) (265) (266) () () ()

--()

--()

--()

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A Periodic Table of the Elements at Los Alamos National Laboratory

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Lanthanide Series*

Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu
140.1 140.9 144.2 (147) 150.4 152.0 157.3 158.9 162.5 164.9 167.3 168.9 173.0 175.0 90 91 92 93 94 95 96 97 98 99 100 101... [continues]

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