Question

An atom of an element X has 2 electrons in its N shell [5]
(i) State its electronic configuration.
(ii) It is a metal or non-metal ?
(iii)State the number of protons in X
(iv)Write the formula of its chloride.
(v) What is the position of the element in periodic lable

Answer 1

Explanation:

1. 2,8,18,8,2
2. metal because it has tendency to loose electron
3. no. of proton - 38
4. XCl2
5. 5 period 2nd group