5.1 study guide Flashcards
1
Q
Proton
A
+1 charge, 1 amu, located in nucleus
2
Q
Neutron
A
No charge, 1 amu, located in nucleus
3
Q
Electron
A
-1 charge, 0 amu, moves around nucelus
4
Q
which one is responsible for reactivity
A
electron
5
Q
which holds the nucleus together
A
neutron.
6
Q
the atomic number tells us
A
how many protons
7
Q
how do you find the charge of an element
A
protons minus electrons
