Question

For a element X it is given that:

Atomic number =17 and mass number =35

(a) Write the electronic configuration of the element X

(b) Find its valency

(c) What will be the formula of the compound formed between X and Y having valency

Answer 1

Answer:

a) 1s^2 2s^2 2p^6 3s&2 3p^5

b) 1

Answer 2

X Element is chlorine.

a) 1s²2s²2p⁶3s²3p⁵

b) -1

c) Question isn't complete

Hope it helps