Question

An element M has an atomic mass 19 and atomic number 9, its ion is represented by
(a) M⁺
(b) M²⁺
(c) M⁻
(d) M²⁻

Answer 1

${\huge {\mathfrak {Answer :-}}}$

➡️ It will gain one electron and form negative ion.

➡️ So, $M^-$.

That's it..

Answer 2

Explanation:

➡️ It will gain one electron and form negative ion.

➡️ So, M^-M

−

.

That's it...