Particle theory: atoms Flashcards
1
Q
What is an atom?
A
An atom is a small particle which makes up all matter.
2
Q
Name the 3 parts of an atom.
A
Protons, neutrons and electrons.
3
Q
What are the parts of an atom known as?
A
Subatomic particles
4
Q
Which subatomic particles make up the nucleus of an atom?
A
Protons and neutrons
5
Q
Which subatomic particle is positively charged?
A
Protons
6
Q
Which subatomic particle is negatively charged?
A
electrons
7
Q
Where are the electrons located in an atom?
A
The electrons in an atom are located around the Atom, they curve around the nucleus.
8
Q
What formula determines how many electrons are on each ring?
A
2n(squared)
