Atoms Flashcards
1
Q
What charge is a proton
A
positive +1
2
Q
what charge is a neutron
A
no electrical charge
3
Q
What charge is an electron
A
negative -1
4
Q
what is the atomic number
A
is the number of protons eg. (sodium) 11 over the mass number
5
Q
what is the mass number
A
is the number of protons and neutrons (the bigger one which is under the mass number)
6
Q
mass number equation
A
mass number = the atomic number (protons) + neutrons
7
Q
number of neutrons equation
A
mass number- atomic number = number of neutrons
