17-03-2021
Chemistry

contestada

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

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

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desirehollis desirehollis

17-03-2021

Answer:

Explanation:it is 11

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rainakim27 rainakim27

17-03-2021

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

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