Question

1. aluminum has how many electrons?

Explanation:

Step1: Recall atomic number concept

The atomic number of an element is equal to the number of protons, and in a neutral atom, the number of electrons is equal to the number of protons.

Step2: Find atomic number of Aluminum

Aluminum (Al) has an atomic number of 13.

Step3: Determine number of electrons

Since a neutral aluminum atom has equal number of electrons and protons, the number of electrons in aluminum is equal to its atomic number, which is 13.

Answer:

13