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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?
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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?

User Tfischbach
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2 Answers

3 votes

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

User Deufeufeu
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5.1k points
5 votes

Answer:

13 Neutrons

Step-by-step explanation:

User Mateuszlo
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6.3k points
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