Chemistry, 04.01.2021 20:00 Amrinderkhattra
An element has atomic number 10 and an atomic mass of 20. How many neutrons are in the atom of this element?
OA.
10
OB.
20
O C.
30
D. 0
O E. 200
Answers: 3
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Chemistry, 22.06.2019 13:00
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Answers: 1
Chemistry, 22.06.2019 17:30
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Answers: 2
An element has atomic number 10 and an atomic mass of 20. How many neutrons are in the atom of this...
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