QUESTION 2


Which components of the atom have a positive charge?


protons


electrons


neutrons


All components have a positive charge.


QUESTION 3


Which component of the atom has the least mass?


protons


electrons


neutrons


All are the same size.


QUESTION 4


The identity of an element depends on the number of


protons in the atom.


electrons in the atom.


neutrons in the atom.


protons and neutrons in the nucleus.


QUESTION 5


What did Rutherford contribute to the model of the atom?


the electron


the nucleus


the neutron


the proton