Question

. An element has eleven protons and twelve neutrons in its nucleus. There are ten electrons present in it.
Is it an atom or an ion? Justify your answer.
If it is an ion, will it be a cation or an anion? Give a reason for your answer.
Is it a metal or a non-metal?
Name its valence shell and the number of valence electrons present in it.

Answer 1

Explanation:

we know that a atom have = no of proton and electron , therefore it is an ion because it have 11 proton and 10 electron , it means that it had lose 1 electron

it is cation , becauses it had lose 1 electron

it is a metal , becauses metal have tendency to lose electron to attain the valency of nearest noble gas

it have 3 shell before losing 1 electron

K. L. M. ( shell name)

2. 8. 1. ( no of electron present in it )

it have 2 shell when it lose 1 electron from M shell

K. L. M. ( shell name)

2. 8. 0. ( no of electron)