Which of the following elements has a half-filled p subshell?

Which of the following elements has a half-filled p subshell?

Correct Answer: Nitrogen

Step 1: Understand what a p subshell is. A p subshell can hold a maximum of 6 electrons and has three orbitals (px, py, pz).
Step 2: Know what 'half-filled' means. A half-filled p subshell means there are 3 electrons in the p subshell (one in each orbital).
Step 3: Look at the electronic configuration of elements. The electronic configuration shows how many electrons are in each subshell.
Step 4: Find the electronic configuration of nitrogen. It is 1s2 2s2 2p3.
Step 5: Analyze the 2p part of nitrogen's configuration. The '2p3' means there are 3 electrons in the p subshell.
Step 6: Conclude that since nitrogen has 3 electrons in its p subshell, it is half-filled.

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