Select the correct answer.
An element has atomic number 10 and an atomic mass of 20. How many...
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Chemistry, 20.03.2020 09:51 princessa15266
Select the correct answer.
An element has atomic number 10 and an atomic mass of 20. How many neutrons are in the atom of this element?
A.10
b.20
D. 0
E. 200
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