Topic 1 - Atomic Structure + Periodic Table Flashcards
1
Q
What is the relative mass of a proton?
A
1
2
Q
What is the relative mass of a neutron?
A
1
3
Q
What is the relative mass of an electron
A
0/ negligible
4
Q
Which two subatomic particles make up the nucleus of an atom?
A
Protons + Neutrons
5
Q
What is an atom called that has a positive or negative charge?
A
An ion
6
Q
How do electrons relate to the nucleus?
A
They orbit the nucleus in energy shells
7
Q
Where is the atomic number?
A
Top left of the element
8
Q
How is the atomic number determined?
A
Number of protons in the nucleus
