dorisgar092 dorisgar092

23-01-2020
Mathematics

contestada

16
Select the correct answer.
For Al, its atomic number is 13 and its mass number is 27. How many neutrons does it have?
O
A.
13
ه
ن
م
نا
40
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Respuesta :

PollyP52 PollyP52

23-01-2020

Answer:

14.

Step-by-step explanation:

The number of neutrons = the mass number - atomic number

= 27 - 13 = 14.

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