Question

What is Valency? Write the atomic numbers and valency of the
following atoms.
(i) N.
(ii) O
(iii) Na​

Answer 1

➖ Answer :-

1 . valency : in chemistry, the combining power of an element, especially measured by the number of hydrogen atoms.

it can displace or combine with.

2. atomic numbers,. valency

i) N - 7 3

ii) O - 8. 2

iii) Na - 11. 1

Answer 2

valency of an element is its combining capacity and is numerically equal to the number of hydrogen atoms on number of Chlorine atoms or double the number of oxygen atoms with which one atom of an element can combine

I) atomic no 7 valency 3

2)atomic no8 valency 2

3)atomic no11 valency 1