Atoms Flashcards
1
Q
Atom
A
The smallest unit of an element that maintains the properties of that element
2
Q
Electron
A
A subatomic particle that has a negative charge
3
Q
Proton
A
Subatomic particle, positive charge
4
Q
Mass number
A
The sum of protons and neutrons
5
Q
Atomic number
A
The number of protons, identifies the atom
6
Q
Neutron
A
Subatomic particle, no charge
7
Q
Electron cloud
A
Region outside of the nucleus, contains electrons
