Andy100100 Andy100100

25-10-2020
Biology

contestada

What does the number 84 in krypton-84 represent

A.the sum of protons and electrons.
B.the mass number.
C.the atomic number
D.twice the protons.

Respuesta :

gabiperez gabiperez

25-10-2020

B. The mass number, also known as the atomic weight/atomic mass

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