dantelin123
23.01.2020 •
Mathematics
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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Ответ:
14.
Step-by-step explanation:
The number of neutrons = the mass number - atomic number
= 27 - 13 = 14.
Ответ: