An atom of alluminum has an atomic number of 13 and a mass of a mass number lf 27. How many neutrons does it have?

Question

asked Feb 8, 2021 10.7k views

2 Answers

Deufeufeu · Answer 1 · 2021-02-09T12:23:29+0000

Answer:

14 neutrons!

Step-by-step explanation:

The mass number is the total number of protons and neutrons in a nucleus. The atomic number is the number of protons in the nucleus.

So... 27−13=14 neutrons