Question

What is the valency of all element 1 to 20.​

Answer 1

Answer:

Valency of Hydrogen11Valency of Helium20Valency of Lithium31Valency of Beryllium42Valency of Boron53Valency of Carbon64Valency of Nitrogen73Valency of Oxygen82Valency of Fluorine91Valency of Neon100Valency of Sodium (Na)111Valency of Magnesium (Mg)122Valency of Aluminium133Valency of Silicon144Valency of Phosphorus153Valency of Sulphur162Valency of Chlorine171Valency of Argon180Valency of Potassium (K)191Valency of Calcium202Valency of Scandium213Valency of Titanium224Valency of Vanadium235,4Valency of Chromium242Valency of Manganese257, 4, 2Valency of Iron (Fe)262, 3Valency of Cobalt273, 2Valency of Nickel282Valency of Copper (Cu)292, 1Valency of 

Explanation:

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Answer 2

Answer:

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Explanation:

1 Hydrogen[H]-valency- 1

2 Helium[He]-valency-0[noble gas]

3 Lithium[Li]-valency-1

4 Beryllium[Be]-valency-2

5 Boron[B]-valency-3

6 Carbon[C]-valency-4[it is a tetravalent element]

7 Nitrogen[N]-valency-3

8Oxygen[O]-valency-2

9Fluorine[F]-valency-1

10 Neon[Ne]-valency-0[noble gas]

11 Sodium[Na]-valency-1

12 Magnesium[Mg]-valency-2

13 Aluminium[Al]-valency-3

14 Silicon[Si]-valency-4[metalloid]/semi conductor

15 Phosphorus[P]-valency-3

16 Sulphur[S]-valency-2

17 Chlorine[Cl]-valency-1

18 Argon[Ar]-valency-0[noble gas]

19 Potassium[K]-valency-1

20 Calcium[Ca]-valency-2