Atomic Structure Flashcards
1
Q
What are atoms made of?
A
Protons, neutrons and electrons
2
Q
What relative charge do protons have?
A
+1
3
Q
What relative charge do electrons have?
A
-1
4
Q
What relative charge do neutrons have?
A
None
5
Q
What are the relative masses of a proton and a neutron?
A
1
6
Q
Why do atoms carry no overall charge?
A
They contain an equal number of protons and electrons
7
Q
Atomic number =
A
Number of protons (=number of electrons)
8
Q
Mass number =
A
Number of protons + neutrons
