2 8 18 32 9 22 8 18 32 8 22 8 18 31 8 22 8 18 30 8 22 8 18 29 8 22 8 18 28 8 22 8 18 27 8 22 8 18 25 9 22 8 18 25 8 22 8 18 24 8 22 8 18 23 8 22 8 18 22 8 22 8 18 21 8 22 8 18 19 9 22 8 18 18 9 2

2 8 18 32 32 8 32 8 18 32 32 8 22 8 18 32 31 8 22 8 18 32 30 8 22 8 18 32 29 8 22 8 18 32 28 8 22 8 18 32 27 8 22 8 18 32 25 9 22 8 18 32 25 8 22 8 18 32 24 8 22 8 18 32 22 9 22 8 18 32 21 9 22 8 18 32 20 9 22 8 18 32 18 10 22 8 18 32 18 9 2

2 8 18 32 32 18 82 8 18 32 32 18 72 8 18 32 32 18 62 8 18 32 32 18 52 8 18 32 32 18 42 8 18 32 32 18 32 8 18 32 32 18 22 8 18 32 32 17 22 8 18 32 18 8 22 8 18 32 18 8 1 2 8 18 32 32 15 22 8 18 32 32 14 22 8 18 32 32 13 22 8 18 32 32 12 22 8 18 32 32 11 2 2 8 18 32 32 16 22 8 18 32 32 10 2

2 8 18 32 18 82 8 18 32 18 72 8 18 32 18 62 8 18 32 18 52 8 18 32 18 42 8 18 32 18 32 8 18 32 18 22 8 18 32 18 12 8 18 18 8 22 8 18 18 8 1 2 8 18 32 15 22 8 18 32 14 22 8 18 32 13 22 8 18 32 12 22 8 18 32 11 2 2 8 18 32 17 12 8 18 32 10 2

2 8 18 18 82 8 18 18 72 8 18 18 62 8 18 18 52 8 18 18 42 8 18 18 32 8 18 18 22 8 18 18 12 8 18 9 22 8 18 8 22 8 18 8 1 2 8 18 16 12 8 18 15 12 8 18 13 22 8 18 13 12 8 18 12 1 2 8 18 182 8 18 10 2

2 8 18 82 8 18 72 8 18 62 8 18 52 8 18 42 8 18 32 8 18 22 8 18 12 8 9 22 8 8 22 8 8 1 2 8 15 22 8 14 22 8 13 22 8 13 12 8 11 2 2 8 16 22 8 10 2

2 8 82 8 72 8 62 8 52 8 42 8 32 8 22 8 1

2 8

2

2 72 62 52 42 32 22 1

1

+1-1

0

+1

+1

+1

+1

+1

+1

+2

+2

+2

+2

+2

+2

+3

+3

+4

+4

+4

+4

+5

+5

+5

+5

+6+3

+6+4

+6+4

+6

+7+4+2

+7+4

+4

+7

+6+3+2

+4+3

+4

+8

+2

+3

+4+3

+2

+4+2

+4+2

+2+1

+3+2+1

+3+1

+2

+1

+2+1

+2

+3

+3

+3

+3

+3+1

+4+2-4

+4-4

+4+2-4

+4+2-4

+4+2

+5+3-3

+5+3-3

+5+3-3

+5+3-3

+3

-2

+6+4+2-2

+6+4+2-2

+6+4+2-2

+4+2-2

-1

+7+5+3+1-1

+5+3+1-1

+7+5+3+1-1

+1-1

0

0

+20

+6+4+2

0

+20

+3 +4+3

+3 +3 +3 +3 +3+2

+3 +3 +3 +3 +3 +3 +3 +3

+3 +4 +5 +6 +5 +4 +3 +3 +3 +3 +3 +3 +3 +2 +3

[281] [280] [285] [286] [289] [289] [293] [294] [294][278][269][264][266][262][261]226.025223.020

162.500 164.930 167.259 168.934 173.055 174.967158.925157.25151.964150.36144.913144.243140.908140.116138.905

251.080 [254] 257.095 258.1 259.101 [262]247.070247.070243.061244.064237.048238.029231.036232.038227.028

195.085 196.967 200.592 204.383 207.2 208.980 [208.982] 209.987 222.018192.217190.23186.207183.84180.948178.49137.328132.905

106.42 107.868 112.414 114.818 118.711 121.760 127.6 126.904 131.293102.906101.0798.90795.9592.90691.22488.90687.6285.468

58.693 63.546 65.38 69.723 72.631 74.922 78.971 79.904 83.798

26.982 28.086 30.974 32.066 35.453 39.948

10.811 12.011 14.007 15.999 18.998 20.180

4.003

58.93355.84554.93851.99650.94247.86744.95640.07839.098

24.30522.990

9.0126.941

1.008

Darmstadtium Roentgenium Copernicium Nihonium Flerovium Moscovium Livermorium Tennessine OganessonMeitneriumHassiumBohriumSeaborgiumDubniumRutherfordiumActinoidsRadiumFrancium

Dysprosium Holmium Erbium Thulium Ytterbium LutetiumTerbiumGadoliniumEuropiumSamariumPromethiumNeodymiumPraseodymiumCeriumLanthanum

Californium Einsteinium Fermium Mendelevium Nobelium LawrenciumBerkeliumCuriumAmericiumPlutoniumNeptuniumUraniumProtactiniumThoriumActinium

Platinum Gold Mercury Thallium Lead Bismuth Polonium Astatine RadonIridiumOsmiumRheniumTungstenTantalumHafniumLanthanoidsBariumCesium

Palladium Silver Cadmium Indium Tin Antimony Tellurium Iodine XenonRhodiumRutheniumTechnetiumMolybdenumNiobiumZirconiumYttriumStrontiumRubidium

Nickel Copper Zinc Gallium Germanium Arsenic Selenium Bromine Krypton

Aluminum Silicon Phosphorus Sulfur Chlorine Argon

Boron Carbon Nitrogen Oxygen Fluorine Neon

Helium

CobaltIronManganeseChromiumVanadiumTitaniumScandiumCalciumPotassium

MagnesiumSodium

BerylliumLithium

HydrogenH

Li

Na

K

Rb

Cs

Fr

He

Ne

Ar

Kr

Xe

Rn

Og

Be

Mg

Ca

Sr

Ba

Ra

B

Al

Ga

In

Tl

Nh

C

Si

Ge

Sn

Pb

Fl

N

P

As

Sb

Bi

Mc

O

S

Se

Te

Po

Lv

F

Cl

Br

I

At

Ts

Sc

Y

Ti

Zr

Hf

Rf

V

Nb

Ta

Db

Cr

Mo

W

Sg

Mn

Tc

Re

Bh

Fe

Ru

Os

Hs

Co

Rh

Ir

Mt

Ni

Pd

Pt

Ds

Cu

Ag

Au

Rg

Zn

Cd

Hg

Cn

La Ce Tm Yb LuPr Nd Pm Sm Eu Gd Tb Dy Ho Er

Ac Th Md No LrPa U Np Pu Am Cm Bk Cf Es Fm

114 115 116 117 118

1

3 4

11 12

19 20 21 22 23 24 25 26 27 28 29 30 31

13

5

32

14

6

33

15

7

34

16

8

35

17

9

36

18

10

2

37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54

55 56 57-71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86

87 88 89-103

57 58 59 60 61 62 63 64 65 66 67 68 69 70 71

89 90 91 92 93 94 95 96 97 98 99 100 101 102 103

104 105 106 107 108 109 110 111 112 113

1

2

3 4 5 6 7 8 9 10 11 12

13 14 15 16 17

18IA

IIA

IIIB IVB VB VIB VIIB VIIIB IB IIB

IIIA IVA VA VIA VIIA

VIIIA

1

2

3

4

5

6

7

PERIODIC TABLE OF THE ELEMENTS

©2019 sciencenotes.org

Lanthanoids

Actinoids

1

K

2

2

2

L

8

2

6

3

M

18

2

6

10

4

N

32

2

6

10

14

5

O

32

2

6

10

14

6

P

18

2

6

10

7

Q

8

2

6

8

R

2

2

Energy Level

ELECTRON SHELLS

Shell Name

Max. Electrons

s

p

d

f2 8 18 32 18 1

+3+1

196.967GoldAu

79

11IB

Group (IUPAC)Group (CAS)AtomicNumber

Symbol

Name

Atomic MassElectron ShellConfiguration

OxidationStates