Question

explain the Valency of first 30 elements

Answer 1

Hi friend,

1) Hydrogen (H)
Atomic Number: 1
Valency = 1

2)Helium (He)
Atomic Number: 2
Valency = 0

3)Lithium(Le)
Atomic Number: 3
Valency = 1

4)Beryllium(Be)
Atomic Number: 4
Valency = 2

5)Boron(B)
Atomic Number: 5
Valency = 3

6)Carbon(C)
Atomic Number: 6
Valency = 4

7)Nitrogen(N)
Atomic Number: 7
Valency = 3

8)Oxygen(O)
Atomic Number: 8
Valency = 2

9)Fluorine(F)
Atomic Number: 9
Valency = 1

10)Neon (Ne)
Atomic Number: 10
Valency = 0

11)Sodium(Na)
Atomic Number: 11
Valency = 1

12) Magnesium(Mg)
Atomic Number: 12
Valency = 2

13) Aluminium(Al)
Atomic Number: 13
Valency = 3

14) Silicon(Si)
Atomic Number: 14
Valency = 4

15) Phosphorus(P)
Atomic Number: 15
Valency = 5 , 3

16) Sulphur(S)
Atomic Number: 16
Valency = 2

17) Chlorine(Cl)
Atomic Number: 17
Valency = 1

18) Argon(Ar)
Atomic Number: 18
Valency = 0

19) Potassium(K)
Atomic Number: 19
Valency = 1

20) Calcium (Ca)
Atomic Number: 20
Valency = 2

21) Scandium (Sc)
Atomic Number: 21
Valency = 3

22) Titanium (Ti)
Atomic Number: 22
Valency = 4

23) Vanadium (V)
Atomic Number: 23
Valency = 5 , 4 

24) Chromium (Cr)
Atomic Number: 24
Valency = 2

25)Manganese(Mn)

Atomic Number: 25
Valency = 7 , 4 , 2

26)Iron (Fe)
Atomic Number: 26
Valency = 2 , 3

27) Cobalt (Co)
Atomic Number: 27
Valency = 3 , 2

28)Nickel (Ni)
Atomic Number: 28
Valency = 2

29)Copper (Cu)
Atomic Number: 29
Valency = 2 , 1

30)Zinc(Zn)
Atomic Number: 30
Valency = 2

Answer 2

Here is the answer... 

Valency..

First of all , what's valency?

Valency is the capacity of an element to combine.
The valency of an element is Indicated by a specific number. It is the number of chemical bonds formed by one atom of that element with other atoms.

First 30 Elements and their Valency 


Hydrogen... Valency = 1

Helium...Valency = 0

Lithium...Valency = 1

Beryllium...Valency= 2

Boron...Valency = 3

Carbon...Valency = 4

Nitrogen...Valency = 3

Oxygen ...Valency =2

Fluorine...Valency= 1

Neon...Valency =0

Sodium...Valency =1

Magnesium...Valency =2

Aluminum....Valency= 3

Silicon...Valency= 4

Phosphorus...Valency = 3

Sulfur...Valency = 2

Chlorine...Valency= 1

Argon...Valency = 0

Potassium...Valency= 1

Calcium...Valency= 2

Scandium....Valency= 3

Titanium...Valency= 4

Vanadium...Valency =4

Chromium...Valency =2

Manganese ....Valency =2

Iron...Valency = 3

Cobalt...Valency = 2

Nickel...Valency = 2

Copper...Valency = 1

Zinc....Valency = 2