For calcium-42, How many protons,
neutrons and electrons are present,
respectively.
A....
Chemistry, 02.12.2020 05:10 sofiakeogh1670
For calcium-42, How many protons,
neutrons and electrons are present,
respectively.
A. 20, 42, 20
B. 20, 22, 20
C. 20, 22, 18
D. 42, 20, 20
Answers: 3
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