Question

periodic table of first 20 elements

Answer 1

Hydrogen
Helium
Lithium
Berylium
Boron
Carbon
Nitrogen
Oxygen
Fluorine
Neon
Sodium
Magnesium
Aluminum
Silicon
Phosphorus
Sulphur
Chlorine
Argon
Potassium
Calcium

Answer 2

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1) (H) Hydrogen 1.008

2) (Li) lithium 6.941

3) (MG)Magnesium 24.305

4) (Ca)calcium 40.078

5) (Ti)Titanium 47.867

6) (V) Vanadium 50.942

7) (S) Sulfur 32.066

8) (As) Arsenic 74.922

9) (In) indium 114.818

10) (Os) osmium 190.23

11) (Hs) Hassium 269

12) (Sr) Strontium 87.62

13) (Y) yttrium 88.905

14) (c) carbon 12.012

15) (He) hellum 4.003

16) (Be) Neon 20.180

17) (P) Phosphorus 30.974

18) (B) Boron 10.811

19) (Zn) Zinc 65.38

20) (Ni) Nickel 58.693

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