CORE Atoms 4.1 HWA

Who bombarded gold foil with alpha particles?

• Dalton

• Rutherford

• Thomson

• Bohr

Who discovered the nucleus?

• Rutherford

• Bohr

• Schrodinger

• Democritus

Please check the following answers that are traits of Bohr's model.

• The Bohr model is also called the Planetary Model

• The Bohr model contains energy levels.

• The Bohr model was discovered from the gold foil experiment.

• The Bohr model is made of a positively charged nucleus and negatively charged electrons in the surrounding orbitals.

Who conducted an experiment using a cathode ray tube, and what did they discover from this experiment?

• Thomson

• Rutherford

• From the cathode ray tube experiment, the nucleus was discovered and has a positive charge.

• From the cathode ray tube experiment, electrons were discovered and have a negative charge.

Who predicted 3 dimensional shapes where electrons are likely to orbit? Hint: He is also our "Math Guy"

• Democritus

• Thomson

• Schrodinger

• Bohr