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alina1380 [7]
3 years ago
6

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?

Chemistry
2 answers:
Alex777 [14]3 years ago
8 0

Answer:

13 Neutrons

Explanation:

RSB [31]3 years ago
3 0

Answer:

14 neutrons!

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

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