Chemistry, asked by kevacharles03, 3 months ago

an atom has 17 electrons,20 neutrons and 17 protons its mass number is???

a)31
b)70
c)62
d)39

Answers

Answered by ishita8496

1

Answer:

answer is mass number = 20+17=37

Answered by skandsoni952

0

Answer:

neutrons+proton=atomic mass

20+17=37

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