Skip to content
Quiz
hat
Corporate training
Modes
Pricing
Library
Parties, events and school
Join with code
Log in
Start free
EN
Italiano
English
Español
Français
Deutsch
Português
Looking for parties, events or school?
Go →
Back to the quiz
Question 1 of 12
0 right
What does the atomic number of an element indicate?
A
The number of protons in the nucleus
B
The number of neutrons
C
The mass in grams
D
The number of orbitals
Solo practice: no account, nothing saved.