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