Free Printable History of the atomic model

Worksheets

History of the atomic model

Total questions: 17

Worksheet time: 9mins

Name

Class

Date

Used the word "atomos" to decsribe the uncuttable (indivisible) atom.

Democritus

Thomson

Bohr

Dalton

Proposed that electrons move around the nucleus in specific layers, or shells.

Bohr

Rutherford

Chadwick

Thomson

This picture best represents ___________________ atomic model.

Thomson's

Dalton's

Bohr's

Chadwick's

Which one of these is Dalton's Model?

Which model was created after the discovery of the nucleus?

Dalton's

Rutherford's

Quantum Mechanical

Plum Pudding

Which model was created after the discovery of the electron cloud?

Dalton's

Rutherford's

Quantum Mechanical

Plum Pudding

Who discovered electrons?

Rutherford

Bohr

J.J. Thompson

Democritus

Ernest Rutherford discovered that the atom was mostly _________________ and has a _______________ charged nucleus.

empty space, positively

empty space, negatively

full of protons, positively

full of neutrons, negatively

Within Dalton's Atomic Theory, he had proposed...

Atoms were the smallest particles that existed and could be divisible

Atoms were the smallest particles that existed and were round

Atoms were the smallest particles that existed and could not be divisible

10.

Which scientist proposed that all matter is composed of atoms, which he assumed were indivisible and indestructible building blocks of nature.

J. J. Thompson

John Dalton

Neils Bohr

Ernest Rutherford

11.

Which experiment was performed by J. J. Thomson in 1897?

Oil Drop Experiment

Gold Foil Experiment

Wave Experiment

Cathode Ray Experiment

12.

Which subatomic particle was discovered as a result of the cathode ray experiment?

proton

neutron

electron

nucleus

13.

Who performed the Gold Foil Experiment?

J. J. Thomson

Ernest Rutherford

Neils Bohr

John Dalton

14.

Which model was proposed by Neils Bohr?

Planetary Model

Plum Pudding Model

Quantum Mechanical Model

Solid Ball Model

15.

Which of the following were outcomes of the Gold Foil Experiment?

Electrons occupy different energy levels orbiting the nucleus.

Electrons are negatively charged subatomic particles.

Electrons orbit the empty space around the dense positive nucleus.

Electrons move in wave patterns around the nucleus

16.

Which subatomic particle was discovered by James Chadwick?

proton

neutron

electron

quark

17.

All of the following of Dalton's theories were correct EXCEPT -

All atoms are identical.

All matter is made of atoms.

Chemical reactions rearrange atoms.

Compounds contain different atoms.

100 %

History of the atomic model

Total questions: 17

Worksheet time: 9mins

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