Question

question 3 (1 point)
there are _ unpaired electrons in a ground state sulphur atom.
0
1
2
3
4

Explanation:

Step1: Determine the electron configuration of sulfur

Sulfur has an atomic number of 16. The electron configuration is \(1s^{2}2s^{2}2p^{6}3s^{2}3p^{4}\).

Step2: Analyze the \(3p\) sub - shell

The \(p\) sub - shell has 3 orbitals. According to Hund's rule, electrons fill degenerate orbitals singly first. For the \(3p^{4}\) configuration, the first 3 electrons go into separate \(3p\) orbitals (one electron in each of the three \(3p\) orbitals), and the fourth electron pairs up with one of them. So, there are 2 unpaired electrons.

Answer:

C. 2