Elements

Elements

Latin names

Symbol

Atomic number

Atomic weight

Electronic configuration

Valency = number of valence electrons or (8- number of valence electrons)

Sodium

Natrium

Na

11

22.98

2, 8, 1

1

Potassium

Kalium

K

19

39.0983

2, 8, 8, 1

1

Magnesium

Magnesium

Mg

12

24.305

2, 8, 2

2

Calcium

Calcium

Ca

20

40.078

2, 8, 8, 2

2

Aluminium

Aluminium

Al

13

26.981

2, 8, 3

3

Zinc

Zincum

Zn

30

65.38

2, 8, 18, 2

2

Iron

Ferrum

Fe

26

55.84

2, 8, 14, 2

2,3

Lead

Plumbum

Pb

82

207.2

2, 2, 18, 32, 18, 4

4

Copper

Cuprum

Cu

29

63.54

2, 8, 18, 1

1,2

Mercury

Hydrargyrum

Hg

80

200.59

2, 8, 18, 32, 18, 2

1,2

Silver

Argentum

Ag

47

107.86

2, 8, 18, 18, 1

1

Platinum

Platinum

Pt

78

195.084

2, 8, 18, 32, 17, 1

2,4

Gold

Aurum

Au

79

196.96

2, 8, 18, 32, 18, 1

1