Structure of the Atom

A proton has a ______ charge.

• positive

• negative

• neutral

Which scientist developed the model seen here.

• James Chadwick

• JJ Thomson

• Neils Bohr

• Ernest Rutherford

What two subatomic particles reside in the nucleus?

• proton

• neutron

• electron

Draw and label the parts of Bohr atom.

John Dalton stated that the atom was indivisible. Which scientist proved Dalton's model to be incorrect.

• Ernest Rutherford

• Neils Bohr

• JJ Thomson

• James Chadwick