Chemistry, 16.12.2020 07:10, stephliu721

15. An increase in atomic number is related to an increase in atomic mass because a. more electrons are present in the atomic nucleus
b. more electrons are orbiting the atomic nucleus
c. more protons are present in the atomic nucleus
d. more protons are orbiting the atomic nucleus

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15. An increase in atomic number is related to an increase in atomic mass because a. more electrons...