192k views
4 votes
Which term best indicates the average mass of an atom of an element?

atomic number

mass number

group number

atomic mass

User Menjaraz
by
7.1k points

2 Answers

5 votes
it is the total number of protons plus the total number of neutrons expressed in D.) atomic mass units
User Johnnietheblack
by
6.0k points
4 votes
The answer is the atomic mass.
User Constantin Berhard
by
6.1k points