Atomic Model Theory

________ gave this ultimate particles the name "atomos", which literally means __________ in Greek.

• Democritus

• single

• Leucippus

• uncuttable

Different models of the atom by different scientist

• Dalton's model

• Thomson's model

• Rutherford's model

• Bohr's model

• Planetary model

in the fifth century BC, the Greek philosopher ___________ and his pupil __________ first made the proposal that is composed oftiny particles that cannot be subdivided.

• Democritus

• Leucippus

• Thomson

• Dalton

What two elements are nanowhiskers usually made of?

• oxygen and nitrogen

• oxygen and carbon

• nitrogen and silver

• carbon and silver

Which scientist is known for his, "Plum Pudding" model of an atom?

• JJ Thomson

• John Dalton

• Ernest Rutherford

• Erwin Schrodinger

Rutherford's experiment provided evidence that ___________.

• negative and positive charges are spread evenly throughout the atom

• Gold is not as dense as previously thought.

• Alpha particles have a positive charge.

• There is a dense, positively-charged nucleus at the center of the atom.

Planetary Model

• Niels Bohr

• Ernest Rutherford

• Joseph John Thomson

• John Dalton

True or False: This model is considered the most modern of all the models we have discussed.

• True

• False

Which scientist proposed the model of the atom in which the electrons are orbiting at different levels?

• Ernest Rutherford

• JJ Thomson

• Erwin Schrodinger

• Neils Bohr

Which of the following is TRUE about Dalton's atomic theory?

• Each element contains a set of protons, neutrons, and electrons.

• All atoms, regardless of whatever element, are identical.

• Atoms can be created and destroyed.

• Each element is composed of extremely small particles called, "atoms".