Question

The atom of an element X has seven electron in its M shell.
a) Write the electronic configuration of element X
b) What is the atomic number of element X
c)What type of ion will be formed by an atom of an element X
give correct answer its urgent​

Answer 1

Answer:

Element X is Chlorine.

A) Electronic configuration in terms of orbitals

1s2 2s2 2p6 3s2 3p5

Electronic configuration in terms of shells

2,8,7

B) Atomic number = 17

2+8+7 = 17

C) Negative ion (Anion)