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Atomic Structure Exam Review

Authored by James Alleyn

Chemistry

10th - 12th Grade

Used 29+ times

Atomic Structure Exam Review
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15 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Who discovered the nucleus?

Ernest Rutherford

JJ Thomson

James Chadwick

Mr. Alleyn

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What did the gold foil experiment help to explain?

Atoms have neutrons in the nucleus

Atoms are made of mostly positively charged material with negatively charged electrons embedded inside

atoms have electrons in probability clouds

atoms have a nucleus with most of the mass at the center

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Who used the cathode ray tube to discover negatively charged electrons?

Rutherford

Einstein

Thomson

Milikan

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What discovery did JJ Thomson make that proved that the atom is not indivisible?

Proton

Electron

Atomic Nucleus

Neutrons

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

During the gold foil experiment why didn't all the alpha particles go straight through the gold?

Some alpha particles hit electrons

Some alpha particles hit other alpha particles

Some alpha particles hit the relatively massive nucleus

Some alpha particles hit the electron cloud

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the present model of the atom?

Bohr Model

Probability Model

Uncertainty Model

Quantum-Mechanical Model

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following statements correctly describes the quantum mechanical model?

Electrons occupy circular orbits with quantized energy levels

Electrons occupy regions of space whose shape is determined by complex mathematical equations

Estimates the probability of finding an electron in a certain postion

Both B and C

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