What is the mass number of the atom shown? a. 11 b. 18 d. 20 C. 19

asked Nov 21, 2022 221k views

3 votes

What is the mass number of the atom shown?
a. 11
b. 18
d. 20
C. 19

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3 votes

Answer:

Explanation:it is 11

Andrewmu answered Nov 23, 2022

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4 votes

it is 20 because the mass is proton + neutron!!! hope this helped :)

Soli answered Nov 28, 2022

by Soli

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