Question

al³⁺ ion has number of electrons and protons 1) 13 electrons, 14 protons 2) 10 electrons, 13 protons 3) 13 electrons, 10 protons 4) 10 electrons, 10 protons

Explanation:

Step1: Determine Protons in Al

Aluminum (Al) has an atomic number of 13, so protons = 13 (atomic number = protons).

Step2: Determine Electrons in \( \text{Al}^{3+} \)

A neutral Al atom has 13 electrons. \( \text{Al}^{3+} \) loses 3 electrons, so electrons = \( 13 - 3 = 10 \).

Answer:

1. 10 electrons, 13 protons