Question

What information does the atomic mass of an element provide?

A.the sum of electrons and protons in an atom
B.the difference between the number of protons and electrons
C.the number of isotopes
D.the number of protons and neutrons in an atom

Answer 1

Explanation:

The atomic mass of an element is the average mass of the atoms of an element measured in atomic mass unit (amu, also known as daltons, D). The atomic mass is a weighted average of all of the isotopes of that element, in which the mass of each isotope is multiplied by the abundance of that particular isotope.

Answer 2

Explanation:

B.the difference between the number of protons and electrons