JJ Thomson and Rutherford Model

Which Model is Thomsons?

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What did Thomson believe?

• Electrons orbited the nucleus

• Electrons were stuck in the atom

• Atom was a smooth hard ball.

What was JJ Thomson big discovery?

• Atom

• Electron

• Nucleus

• Proton

What was the name of JJ Thomson Atomic model?

• Plum pudding

• Electron maker

• Thomson

In Rutherford atomic model the alpha particles were stroked on

• Aluminium

• Gold

• Titanium

• Silver

What are electrons?

• Massive, positively charged particles

• Tiny, negatively charged particles

• Clouds of dust in the nucleus

• Neutral particles around the nucleus

Tags

NGSS.MS-PS2-3

Who proposed the idea that atoms of the same element are the same and atoms of different elements are different?

• Dalton

• Bohr

• Rutherford

• Thomson

What experiment proved a small dense positively charged nucleus, and who did it?

• gold foil experiment, Rutherford

• gold foil experiment, Thomson

• cathode ray tube experiment, Thomson

• cathode ray tube experiment, Dalton

Which of these conclusions can be drawn from Rutherford's experiment?

• Each atom contains electrons.

• The nucleus of an atom can be split.

• Each atom contains protons.

• Atoms are mostly empty space.

Tags

NGSS.MS-PS1-1

The positively charged particles of an atom are the ________.

• electrons

• protons

• neutrons

• protons & neutrons