The Atom Flashcards
1
Q
Proton
A
Location: in nucleus
Mass: 1 unit
Charge: +1
2
Q
Neutron
A
Location : in nucleus
Mass: 1 unit
Charge: 0
3
Q
Electrons
A
Location: outside nucleus
Mass: 2,000 times smaller than proton
Charge: -1
4
Q
How to calculate number of neutrons
A
Mass number - atomic number
5
Q
Isotopes
A
Atoms with the same atomic number but different mass numbers