Lession 4 Flashcards
1
Q
Atom
A
The smallest unit of eliment
2
Q
Electron
A
A subatomic partial that has a negative charge
3
Q
Nucleus
A
Center of an atom made up of protons and neutrons
4
Q
Protons
A
A subatomic particle that has a positive charge
5
Q
Neutron
A
A subatomic particle that has no charge
6
Q
Electron cloud
A
A region around the Nucleus of an atom
7
Q
Atomic cloud
A
The number of protons in the nucleus of an atom
8
Q
Mass number
A
The sum of the number of protons and neutrons in the nucleus of an atom
