Atomic Structures Flashcards
1
Q
The smallest unit of an element
A
Atom
2
Q
A somatic particles that a Negative charge
A
Electron
3
Q
Center of an atom contains protons and neutrons
A
Nucleus
4
Q
Somatic particle with no charge
A
Neutron
5
Q
A region around nucleus contains electrons
A
Electron cloud
6
Q
The sum of protons and neutrons
A
Mass number
7
Q
Number of neutrons identifies the atom
A
Atomic number
8
Q
A submatic particle that has a positive charge
A
Proton
