Question

An element X has atomic number 17 and 18 neutrons. answer the following questions on the basis of above

information- (5)

a) Identify X and calculate the atomic mass.

b) Draw the atomic orbit diagram of X and write the electronic configuration.

c) Write the valency and valance electrons.​

Answer 1

Explanation:

a )chlorine

b )2 8 7 1st shell 2 electrons

2nd shell 8 and 3rd shell 7 elctrons

c)valency = -1

valence electrons = 7