1s 1 1.0 H
1
  PERIODIC TABLE
Atomic number
Mean atomic mass
Element
Electron Configuration 		2 4.0 He
2
2s 3 6.9 Li
2-1
 4 9.0 Be
2-2 		2p 5 10.8 B
2-3
6 12.0 C
2-4 		7 14.0 N
2-5
8 16.0 O
2-6
9 19.0 F
2-7
10 20.2 Ne
2-8
3s 11
2-8-1 		12 24.3 Mg
2-8-2		 3p 13 27.0 Al
2-8-3
 14 28.1 Si
2-8-4		 15 31.0 P
2-8-5		 16 32.1 S
2-8-6		 17 35.5 Cl
2-8-7		 18 39.9 Ar
2-8-8
4s 19 39.1 K
2-8-8-1		 20 40.1 Ca
2-8-8-2
3d 21 45.0 Sc
2-8-9-2		 22 47.9 Ti
2-8-10-2		 23 50.9 V
2-8-11-2		 24 52.0
Cr
2-8-13-1		 25 54.9 Mn
2-8-13-2		 26 55.8 Fe
2-8-14-2		 27 58.9 Co
2-8-15-2
 28 58.7 Ni 2-8-16-2
29 63.5 Cu
2-8-18-1
30 65.4
Zn		 4p 31 69.7 Ga
 32 72.6 Ge
 33 74.9 As 34 79.0 Se
 35 79.9 Br 36 83.8 Kr
5s 37 85.5 Rb 87.6
Sr
38 		4d 39 88.9 Y 40 91.2
Zr		 41 92.9 Nb
 42 95.9
Mo		 43 (99) Tc 44 101.1 Ru 45 102.9 Rh 46 106.4 Pd 47 107.9
Ag		 48 112.4
Cd		 5p 49 114.8 In 50 118.7 Sn 51 121.8 Sb 52 127.6 Te

 53 126.9 I
 54 131.3 Xe
6s 55 132.9
Cs		 56 137.3
Ba		 5d 57 138.9
La		 * 72 178.5
Hf		 73 181.0
Ta		 74 183.9
W		 75 186.2
Re		 76 190.2
Os		 77 192.2 Ir
 78 195.1 Pt
 79 197.0 Au 80 200.6 Hg
 6p 81 204.4
Ti		 82 207.2
Pb		 83 209.0
Bi		 84 (210)
Po		 85 (210) At
085_astatine		 86 (222)
Rn
7s 87 (223)
Fr
 88 (226)
Ra
 6d 89 (227)
Ac
 ! 104 (261)
Rf
 105 (262)
Db
 106 (263)
Sg
 107 (262)
Bh
 108 (265)
Hs
 109 (266)
Mt

 

 *
Lanthanides		 140.1
Ce
58		 140.9
Pr
59		 144.2
Nd
60		 (147)
Pm
61 		150.4
Sm
62 		152.0
Eu
63
 64 157.3
Gd
 65 158.9
Tb
 66 162.5
Dy
 67 164.9
Ho
 68 167.3
Er
 69 168.9
Tm
 70 173.0
Yb
 71 175.0
Lu
!
Actinides 		 90 232.0
Th		 91 (231)
Pa		 92 238.1
U		 93 (237)
Np		 94 (244)
Pu		 95 (243)
Am		 96 (247)
Cm		 97 (247)
Bk
 98 (251)
Cf		 99 (252)
Es		 100 (257)
Fm		 101 (258)
Md		 102 (259)
No		 103 (260)
Lr

The table is the best and worst
The table is the universe
Eat from the table, run from the table
and you'll end up
right back at the table.

Periodic Table