Question

the element aluminum has an atomic number of 13. how many protons are in the nucleus of an aluminum atom? how many electrons does an aluminum atom have?

Explanation:

Step1: Determine protons

The atomic number equals the number of protons. So, protons = atomic number = 13.

Step2: Determine electrons

In a neutral atom, the number of electrons equals the number of protons. So, electrons = protons = 13.

Answer:

13
13