Question

Which of the following equations is true?
A Electrons+neutrons=atomic number
B
Electrons+protons=atomic weight
C
Protons+ Neutrons=Atomic weight

Answer 1

Answer:

Protons+ Neutrons=Atomic weight

Explanation:

Of the three subatomic particles, only protons and neutrons have mass. Electrons orbit the nucleus and their mass is negligible.

Answer 2

Answer:

C. Protons + Neutrons = Atomic weight

Explanation:

The total weight of an atom is called the atomic weight. It is approximately equal to the number of protons and neutrons, with a little extra added by the electrons.