Unit 1 quiz chem atomic structure & theory

Which scientist developed th eplum pudding model?

• Democritus

• Bohr

• JJ Thompson

• Rutherford

scientist that discovered nucleus with gold foil experiment

• Democritus

• Dalton

• Rutherford

• JJ Thompson

developed 5 major points of the first atomic theory

• Bohr

• Dalton

• Rutherford

• Thompson

First to propose the idea of atoms

• Democritus

• Dalton

• Rutherford

• JJ Thomson

THe atomic # is equal to the number of

• protons

• neutrons

• electrons

THE ___________ in an atom have a negative charge.

• protons

• neutrons

• electrons

The ____________ in an atom are neutral.

• protons

• neutrons

• electrons