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Grade 9 Unit B Section 2 Review Quiz

Authored by Gabriel Cauti

Science

9th Grade

Used 15+ times

Grade 9 Unit B Section 2 Review Quiz
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28 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which greek philosopher said the elements are various combinations of air, earth, fire and water?

Democritus

Aristotle

Berzelius

Pythagoras

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Who developed the "electron shell" model of the atom?

Rutherford

Dalton

Bohr

Thomson

3.

FILL IN THE BLANK QUESTION

1 min • 1 pt

The ____________ is a positively charged sub atomic particle

4.

FILL IN THE BLANK QUESTION

1 min • 1 pt

The __________ is a negatively charged particle that orbits the atom.

5.

FILL IN THE BLANK QUESTION

1 min • 1 pt

The ___________ is 1/10 000th the size of the atom and composed of protons and neutrons

6.

FILL IN THE BLANK QUESTION

1 min • 1 pt

An element's ________________ tells us how many protons that element has.

7.

FILL IN THE BLANK QUESTION

1 min • 1 pt

An element's ______________ tells us the average mass of an atom of that element.

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