stud
bud
Sign up
Log in
Home
Library
Explore
SAT
More
Periodic Table Review! Flashcards | StudBud
Periodic Table Review!
1 / 14
The atomic mass of an element is an average of both the ____________ and ______________ of an atom
A
Protons neutrons and electrons
B
protons and neutrons
C
Neutrons and electrons
D
Preutrons and elequarks
Next
0
0
correct · 0:00
