Introduction to Atoms

An ____ is the smallest particle of an element.

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NGSS.MS-PS1-1

What is atomic theory?

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NGSS.HS-PS1-7

The english chemist that that inferred atoms had certain characteristics

• JJ Thomson

• Ernest Rutherford

• John Dalton

• Niels Bohr

• James Chadwick

List three of Dalton's summary of ideas

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NGSS.HS-PS1-7

British scientist, found that atoms contain negatively charged particles.

• John Dalton

• Ernest Rutherford

• Niels Bohr

• JJ Thomson

• James Chadwick

Negatively charged particles are known as _________.

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NGSS.HS-PS1-1

How is Thomson's model like a chocolate chip cookie?

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NGSS.MS-PS1-1

In an experiment, this scientists research team aimed a beam of positively charged particles at a thin sheet of gold foil.

• Ernest Rutherford

• Niels Bohr

• JJ Thomson

• James Chadwick

• John Dalton

An atoms positive charge must be clustered together in a tiny region in its center called the

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NGSS.HS-PS1-8

Describe Rutherford's gold foil experiment