Chemistrymedium · Past Paper
An element has 2 electrons in the K shell, 8 in the L shell, and 3 in the M shell. Identify the element.
ABoron
BAluminium
CGallium
DIndium
✓ Correct Answer: B — Aluminium
Total electrons = 2+8+3 = 13. The element with atomic number 13 is Aluminium.
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