Question

question 21 (1 point) ai3+ 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: Identify atomic number of Al

Aluminum (Al) has atomic number 13. Atomic number = number of protons. So, number of protons in Al³⁺ is 13.

Step2: Calculate number of electrons

Al³⁺ is formed when Al loses 3 electrons. Neutral Al has 13 electrons. After losing 3 electrons, number of electrons = 13 - 3 = 10.

Answer:

1. 10 electrons, 13 protons