Atoms Flashcards
1
Q
What is an Atom?
A
An atom is the smallest unit of an element.
2
Q
What are Atoms make up of?
A
subatomic particles called protons, neutrons, and elections.
3
Q
Protons
A
~positive electrical charge
~located in the nucleus of an atom
4
Q
Electrons
A
~ negative electrical charge
~ located in the electron cloud
~ smaller and have less mass than protons and neutrons
5
Q
What is an atoms charge when the number of protons and electrons are the same?
A
The atom has no electrical charge.
6
Q
What is atom mass?
A
The number of protons and neutrons in an atom.
7
Q
How is atomic mass determined?
A
By adding the number of protons and neutrons
8
Q
What is the center of an atom called?
A
A nucleus.
