Is the Mass Number of an element the top or the bottom number?
Top
Bottom
The Atomic Number tells us how many --------ons there are?
Protons
Electrons
Ions
Neutrons
The number of Electrons are shown by which number?
Atomic Number
Mass Number
Neither
The Element Letters
Which Number is the Atomic Number?
The Top Number
The Bottom Number
The Mass Number shows the amount of what in the Element
Electrons and Ions
Neutrons and Protons
Ions and Protons
