5.1 Flashcards
1
Q
protons
A
mass of 1 amu, pos charge, determines element
2
Q
neutrons
A
mass of 1 amu, neu charge, holds nucleus together
3
Q
electrons
A
virtually no mass, neg charge, react during chemical reaction
4
Q
opposite charges…
A
attract
5
Q
matching charges…
A
repel
6
Q
A