Atomic Structure Flashcards
1
Q
atom-
A
the smallest unit of an element
2
Q
Electrons
A
subatomic particle, negative (-)w/ negative charge
3
Q
Nucleus
A
Center of an atom, contains protors + neutrons
4
Q
Proton
A
subatomic particle, positive (+) Charge
5
Q
Neutron
A
subatomic particle, no charge
6
Q
Electron cloud
A
area around the nucleus, contains electrons
7
Q
Mass number
A
the sum of protons +neutrons
8
Q
Atomic number
A
the number of protons, identifies the atom
