stud
bud
Sign up
Log in
Home
Library
Explore
SAT
More
Chemistry Chapter 3 & 4 Review Flashcards | StudBud
Chemistry Chapter 3 & 4 Review
1 / 24
What is the mass number of an atom with 20 protons and 22 neutrons?
A
20
B
22
C
440
D
42
Next
0
0
correct · 0:00
