______________ is defined as the number of protons plus the number of neutrons.
A) Atomic number
B) Mass number
C) Nuclear number
D) Ionic number
E) Isotopic number

Question

Quizplus · Accepted Answer

Mass number is defined as the sum of the number of protons and neutrons in an atom. Atomic number represents only the number of protons in an atom, while nuclear number and ionic number are not accepted terms in chemistry. Isotopic number is also not a commonly used term in chemistry.

______________ Is Defined as the Number of Protons Plus the Number