Question

part h
indicate the number of unpaired electrons in in.
express your answer as an integer.
unpaired electron(s)

Explanation:

Step1: Determine In's electron configuration

Indium (In) has an atomic number of 49. Its electron configuration is $[Kr] 4d^{10} 5s^{2} 5p^{1}$.

Step2: Analyze unpaired electrons

In the $5p$ orbital, there is 1 electron. Since a $p$ orbital can hold up to 6 electrons (3 sub - orbitals, each with 2 electrons), and we have 1 electron in the $5p$ sub - shell, this electron is unpaired. The $4d$ and $5s$ orbitals are completely filled (10 electrons in $4d$, 2 in $5s$), so they have no unpaired electrons.

Answer:

1