Ptable.com Periodic Table

PERIODIC TABLE OF ELEMENTS

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18

Noble gases

Other nonmetals Metalloids

Post-transition metals Transition metals

Alkaline earth metals Alkali metals

1 1 Atomic #

1 H Symbol

Hydrogen Name

1.008 N Weight

3

4 2

1

2 2

2 Li Be

Lithium Beryllium

6.94 K 9.0122 E

C Solid Hg Liquid H Gas

Metals

Lanthanoids (Lanthanides)

L

Actinoids

Nonmetals

5

B

Boron 10.81

2

2K L

M

He

N O P

Q

Helium

Pnictogens Chalcogens Halogens 4.0026 G

6 2

3

7 2

4

8 2

5

9 2

6

10 2

7

2K 8L

M

C

N

OF

Ne

N O P

Q

Carbon Nitrogen Oxygen Fluorine Neon

M 12.011 N 14.007 N 15.999 N 18.998 N 20.180 G

11

12 2

8 1

2 8 2

3 Na Mg

Sodium Magnesium

Rf Unknown

(Actinides)

13

14 2

8 3

15 2

8 4

16 2

8 5

17 2

8 6

18 2

8 7

2K 8L 8M

K

E

A

T

P

M

N

G Al Si P

S

Cl

Ar

N O P

Q

Aluminium Silicon Phosphorus Sulfur Chlorine Argon

22.990 K 24.305 E

26.982 P 28.085 M 30.974 N 32.06 N 35.45 N 39.948 G

19

20 2

8 8

21 2

8 8

22 2

8 9

23 2

8 10

24 2

8 11

25 2

8 13

26 2

8 13

4 K 1 Ca 2 Sc 2 Ti V 2 2 Cr 1 Mn 2 Fe

Potassium Calcium Scandium Titanium Vanadium Chromium Manganese Iron

27 2

8 14

2 Co

28 2

8 15

2 Ni

29 2

8 16

2 Cu

30 2

8 18

1 Zn

Cobalt Nickel Copper Zinc

31 2

8 18

32 2

8 18

33 2

8 18

34 2

8 18

35 2

8 18

36 2

8 18

2K 8L 18 M

Ga Ge As Se Br Kr 2

3

4

5

6

7

8N

O

P

Q

Gallium Germanium Arsenic Selenium Bromine Krypton

39.098 K 40.078 E 44.956 T 47.867 T 50.942 T 51.996 T 54.938 T 55.845 T 58.933 T 58.693 T 63.546 T 65.38 T 69.723 P 72.630 M 74.922 M 78.971 N 79.904 N 83.798 G

37

38 2

8 18

39 2

8 18

40 2

8 18

41 2

8 18

42 2

8 18

43 2

8 18

44 2

8 18

45 2

8 18

46 2

8 18

47 2

8 18

48 2

8 18

49 2

8 18

50 2

8 18

5 Rb

Sr 8

1

Y 8

2

Zr Nb Mo Tc Ru Rh Pd Ag Cd In 9

10

12

13

13

15

16

18

18

18

2

2

1

1

2

1

1

1

2

Sn 18 3

Rubidium Strontium Yttrium Zirconium Niobium Molybdenum Technetium Ruthenium Rhodium Palladium Silver Cadmium Indium Tin

51 2

8 18

52 2

8 18

53 2

8 18

54 2

8 18

2K 8L 18 M

Sb Te 18

18

4

5

I18 6

Xe 18 7

18 N 8O P

Q

Antimony Tellurium Iodine Xenon

85.468 K 87.62 E 88.906 T 91.224 T 92.906 T 95.95 T (98) T 101.07 T 102.91 T 106.42 T 107.87 T 112.41 T 114.82 P 118.71 P 121.76 M 127.60 M 126.90 N 131.29 G

55

56 2

8 18

2 8 18

6 Cs Ba 18

18

8

8

1

2

Caesium Barium

57?71

72

Hf

73 2

8 18

Ta 32

10 2

74 2

8 18

W 32

11 2

75 2

8 18

Re 32

12 2

76 2

8 18

Os 32

13 2

77 2

8 18

Ir 32

14 2

78 2

8 18

Pt 32

15 2

79 2

8 18

Au 32

17 1

Hafnium Tantalum Tungsten Rhenium Osmium Iridium Platinum Gold

80 2

8 18

Hg 32

18 1

81 2

8 18

Tl 32

18 2

82 2

8 18

Pb 32

18 3

Mercury Thallium Lead

83 2

8 18

84 2

8 18

85 2

8 18

86 2

8 18

2K 8L 18 M

Bi 32

18 4

Po 32

18 5

At 32

18 6

Rn 32

18 7

32 N 18 O

8P

Q

Bismuth Polonium Astatine Radon

132.91 K 137.33 E

178.49 T 180.95 T 183.84 T 186.21 T 190.23 T 192.22 T 195.08 T 196.97 T 200.59 T 204.38 P 207.2 P 208.98 P (209) P (210) M (222) G

87

88 2

8 18

2 8 18

104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 2

2

2

2

2

2

2

2

2

2

2

2

2

2

2K

8

8

8

8

8

8

8

8

8

8

8

8

8

8

8L

18

18

18

18

18

18

18

18

18

18

18

18

18

18

18 M

7 Fr

Ra Rf 32

32

18 8 1

18 8 2

89?103

Db 32

32 10

2

Sg 32

32 11

2

Bh 32

32 12

2

Hs 32

32 13

2

Mt 32

32

14 2

Ds 32

32 15

2

Rg 32

32 17

1

Cn 32

32 18

1

Nh 32

32 18

2

Fl 32

32 18

3

Mc 32

32 18

4

Lv 32

32 18

5

Ts 32

32 18

6

Og 32

32 18

7

32 N 32 O 18 P

8Q

Francium Radium

Rutherfordium Dubnium Seaborgium Bohrium Hassium Meitnerium Darmstadtium Roentgenium Copernicium Nihonium Flerovium Moscovium Livermorium Tennessine Oganesson

(223) K (226) E

(267) T (268) T (269) T (270) T (277) T (278) (281) (282) (285) T (286) (289) P (290) (293) (294) (294)

For elements with no stable isotopes, the mass number of the isotope with the longest half-life is in parentheses.

Ptable .com

57

58 2

8 18

59 2

8 18

60 2

8 18

61 2

8 18

62 2

8 18

63 2

8 18

64 2

8 18

65 2

8 18

66 2

8 18

67 2

8 18

68 2

8 18

69 2

8 18

70 2

8 18

71 2

8 18

2 8 18

6 La Ce Pr 18

19

9

9

2

2

Nd Pm Sm Eu Gd Tb Dy Ho Er 21

22

23

24

25

25

27

28

29

8

8

8

8

8

9

8

8

8

2

2

2

2

2

2

2

2

2

Tm Yb 30

31

8

8

2

2

Lu 32 8 2

32 9 2

Lanthanum Cerium Praseodymium Neodymium Promethium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium Thulium Ytterbium Lutetium

138.91 L 140.12 L 140.91 L 144.24 L (145) L 150.36 L 151.96 L 157.25 L 158.93 L 162.50 L 164.93 L 167.26 L 168.93 L 173.05 L 174.97 L

89

90 2

8 18

91 2

8 18

92 2

8 18

93 2

8 18

94 2

8 18

95 2

8 18

96 2

8 18

97 2

8 18

98 2

8 18

99 2

8 18

100 101 102 103 2

2

2

2

2

8

8

8

8

8

18

18

18

18

18

7 Ac

Th 32

18 9 2

Pa 32

18 10

2

U 32

20 9 2

Np 32

21 9

Pu 32

22 9

Am Cm Bk 32

32

32

24

25

25

8

8

9

Cf 32

27 8

Es 32

28 8

Fm Md No Lr 32

32

32

32

29

30

31

32

8

8

8

8

32 32

8

2

2

2

2

2

2

2

2

2

2

2

3

Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium Curium Berkelium Californium Einsteinium Fermium Mendelevium Nobelium Lawrencium

(227) A 232.04 A 231.04 A 238.03 A (237) A (244) A (243) A (247) A (247) A (251) A (252) A (257) A (258) A (259) A (266) A

Design Copyright ? 2017 Michael Dayah (michael@). For a fully interactive version with orbitals, isotopes, compounds, and free printouts, visit

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