Question

hey friends please give me two valancy questions.for class-7

Answer 1

hey!!!.


what is the valency of carbon? symbol ,atomic weight ,atomic number?.



define valency?.

ok

Answer 2

HEYAA FOLK,


Question 1
One atom of Chlonie combines with one atom of Hydrogen to form HCL. Similarly, one atom of Nitrogen combines with three atoms of Hydrogen to form amonia represented as NH3. Whose valency s more - Nitrogen or Chlorine ???

A

Nitrogen

B

Chlorine

Question 1st Explanation: 

The valency is the capacity of an atom to combine with other atoms of different elements.


Question 2
If an element A has valency Y and element B has valency X , in that case if both element combines, the formula for the resultant element will be ...

1) A

2) AxBy

3) B

4) AyBx

Question 2nd Explanation: 

H2O means , valancy of Oxygen is 2 and Hydrogen is 1.


hope it helps you!!!