5.1 Flashcards
1
Q
Proton
A
Charge: +1
Mass: 1
Location: nucleus
Role: Make up atoms
2
Q
Neutron
A
Charge: 0
Mass: 1
Location: nucleus
Role: Holds protons together
3
Q
Electron
A
Charge: -1
Mass: 0
Location: everywhere
Role: moves around + controls radioactivity
4
Q
Isotope
A
Variations of the same element
5
Q
Which charges attract and repel each other?
A
Attract: + -
Repel ++ –
6
Q
Explain why isotopes can be useful in scientific research
A
Because some are radioactive
