Question

30 element with their atomic numbers and atomic mass

Answer 1

ELEMENTS (symbol)atomic no.

atomic mass.

Hydrogen (H) 1

1.008

Helium (He) 2

4.003

Lithium (Li ) 3

6.940

Beryllium (Be) 4

9.013

Boron (B)5

10.82

Carbon (C) 6

12.01

Nitrogen (N)7

14.008

Oxygen (O)8

16.00

Fluorine (F)9

19.00

Neon (Ne)10

20.183

sodium (Na )11

22.991

Magnesium (Mg )12

24.32

Aluminum (Al)13

26.98

silicon (Si)14

28.09

phosphorus (p)15

30.975

Sulphur (S)16

32.066

chlorine (Cl)17

35.457

Argon (Ar)18

39.944

potassium (K)19

39.10

Calcium(ca) 20

40.08

Scandium (Sc)21

44.96

Titanium(Ti) 22

47.90

Vanadium(V) 23

50.95

Chromium(Cr) 24

52.01

Manganese (Mn)25

54.93

Iron (Fe)26

55.85

Cobalt(Co) 27

58.94

Nickel (Ni) 28

58.69

Copper (Co)29

63.54

Zinc(Zn) 30

65.38

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Answer 2

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