Question

An element with the valence electron configuration 5s²would form a monatomic ion with a charge of .
In order to form this ion, the element will _____lose/gain ___12345678 electron(s) from/into the _______spdfs + ps + dp or d subshell(s).



If an element with the valence configuration 4s¹3d¹⁰loses 2 electron(s), these electron(s) would be removed from the _______spdfs + ps + dp or d subshell(s).

Answer 1

1)

An element with the valence electron configuration 5s2would form a monatomic ion with a charge of +2
In order to form this ion, the element will lose 2 electron(s) from/into the s subshell(s).

Explanation:

By losing 2 electrons, it is attaining noble gas configuration and hence the ion is more stable.



If an element with the valence configuration 4s13d10loses 2 electron(s), these electron(s) would be removed from the d subshell(s).

Explanation:

Electrons are always removed from higher energy.

Here 3d has more energy than 4s. So, electrons are removed from 3d subshell.