MATSEC IM Chemistry Practice Questions - Malta Intermediate Matriculation (IM) Chemistry - IM 06 (2026) Exam

What is the electronic configuration of a phosphorus atom (atomic number 15) using s, p notation?

1s2 2s2 2p6 3s2 3p3 1s2 2s2 2p6 3s2 3p6 1s2 2s2 2p6 3s1 3p4 1s2 2s2 2p6 3s2 3d3

Correct Answer:

1s2 2s2 2p6 3s2 3p3

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