stud
bud
Sign up
Log in
Home
Library
Explore
SAT
More
Semi-blind Quiz!: Atoms and the Periodic Table (V2) Flashcards | StudBud
Semi-blind Quiz!: Atoms and the Periodic Table (V2)
1 / 13
How many protons does calcium have?
A
20 protons
B
120 protons
C
60 protons
D
40 protons
Next
0
0
correct · 0:00
