Atomic Model Development Quiz - Dawn Jacobs | Biblioteka

1

Early Philosphers believed all matter to be made of what four basic elements?

A Empty Space, Earth, Wind, Fire

B Earth, Wind, Fire, Water

C Earth, Air, Rock, Water

D Fire, Air, Rock, Water

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Choose the 4 parts that apply to Democratis' idea of matter. (all correct answers must be marked for credit)

1

Aristotle believed, and taught,

A what Democratis thought.

B matter was from 4 basic elements and moved through empty space.

C matter was from 4 basic elements and there was no empty space.

D matter was made up of 'atomos', small indivisible, indestructible particles.

1

Choose the parts of Dalton's Atomic Theory (all correct answers must be chosen for credit)

A Atoms are solid and indestructible.

B Atoms are homogeneous and heterogeneous.

C Atoms of the same element are the same; those of different elements are different.

D All atoms are the same.

E Atoms combine in simple, whole number ratios to form compounds.

F Atoms combine to form new atoms.

G Chemical reactions combine, separate or rearrange atoms.

H Atoms cannot combine, separate or rearrange.

1

Who conducted the oil-drop experiment?

A J. J. Thomson

B Robert Millikan

C Ernest Rutherford

D James Chadwick

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What was important about the oil-drop experiment?

A It identified the mass of the sub-atomic particle the proton.

B It identified the mass of the sub-atomic particle the neutron.

C It identified the mass of the sub-atomic particle the electron.

D It identified the mass of the sub-atomic particle the positron.

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How long was it between Democratis' ideas about the atom and Dalton's Atomic Theory?

A about 20 years

B about 200 years

C about 2000 years

D none of the above

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How long was it between Dalton's Atomic Theory, and the experiments that began to modify it by finding sub-atomic particles?

A about 10 years

B about 100 years

C about 1000 years

D none of the above

1

What was concluded by the gold-foil experiment?

A atoms are made up of mostly empty space.

B The nucleus is the dense part of the atom.

C The nucleus is positively charged.

D all of these

1

Which scientist discovered the neutron?

A Ernest Rutherford

B J. J. Thomson

C Robert Millikan

D James Chadwick

1

Choose the scientists whose work identified sub-atomic particles. (all, but only the correct answers must be chosen for credit)

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What experiment identified the electron?

A gold foil experiment

B cathode ray tube experiment

C oil drop experiment

D wave/particle duality

1

Which scientist first suggested electrons in 'planetary orbits', and which other scientist confirmed these levels spectroscopically?

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Whose theory indicated a wave nature not only for electrons, but for all matter?

A Heisenberg

B deBroglie

C Chadwick

D Schrödinger

1

The theory that an electron wave equation predicted the probability of the location of an electron was presented by whom?

A Schrödinger

B deBroglie

C Heisenberg

D Bohr

1

The idea that one cannot measure exactly both the location and velocity of an electron is called the

A Heisenberg Certainty Principle

B Wave/Particle Duality

C Heisenberg Uncertainty Principle

D Pauli Exclusion Principle

1

In the Plum-Pudding Model,

A atoms are made of oatmeal and raisins.

B positive electrons are distributed in negative 'pudding' background.

C negative electrons are distributed in positive 'pudding' background.

D negative electrons circulate around a positive nucleus.

1

Gas discharge tubes and a spectroscope were used by whom to identify elements?

A James Chadwick

B Robert Millikan

C Ernest Rutherford

D Neils Bohr

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Spectroscopy led to the identification of distinct _____.

A energy levels of electrons.

B energy levels of protons.

C wave equations for electrons.

D wave equations for protons.

1

The Atomic Model has remained essentially the same for the last 150 years.

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