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NEET levelSingle correct optionDifficulty 1 of 3as005

The numbers of electrons, protons and neutrons in $X_{13}^{27} X_{213}^{227} Al X^{3 +}$ are respectively

A13, 13, 14
B16, 13, 14
C10, 13, 14
D10, 13, 27

Answer: C

Protons = 13. Neutrons = 27 - 13 = 14. A cation of charge +3 has 13 - 3 = 10 electrons.

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