Home
Class 12
CHEMISTRY
Atomic mass of an element is 24 and it c...

Atomic mass of an element is 24 and it contains K neutrons, valency of the element is

A

1

B

2

C

3

D

4

Text Solution

Verified by Experts

The correct Answer is:
B

Atomic number = Atomic mass - Number of neutron
= 24 - 12 =12
Electronic configuration of the element = 2,82 thus valency of the element is 2.
Promotional Banner

Similar Questions

Explore conceptually related problems

(a) Describe the Rutherford's model of an atom. State one drawback of Rutherford's model of the atom (b) The mass number of an element is 23 and it contains 11 electrons. What is the number of protons and neutrons in it ? What is the atomic number of the element ?

Assertion (A): The equivalent mass of element is varialbe. Reason (R ): It depents on the valency of the element.

Nucleus of an atom contains 5 protons and 6 neutrons .The valency of element will be

The atomic number of an element is 15. Hence, it will show a valency of