Atomic Structure and Properties

Atomic Structure and Properties

Assessment

Interactive Video

Chemistry

9th - 10th Grade

Practice Problem

Hard

Created by

Patricia Brown

FREE Resource

The video tutorial covers the basics of atoms and elements, including their structure and properties. It explains the laws of definite and multiple proportions, using examples like gold and water. The structure of atoms is discussed, highlighting the nucleus and electron cloud. Rutherford's gold foil experiment is detailed, showing how it led to the current atomic model. The video also covers the properties of electrons and experiments that determined their mass and charge.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the smallest unit of gold that retains its properties?

An atom

A proton

An electron

A molecule

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which model represents the volume of electron clouds around a water molecule?

Chemical formula

Space filling model

Ball and stick model

Hydrogen bond diagram

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

According to the law of definite proportions, what is the mass percentage of hydrogen in water?

88.81%

16%

11.19%

50%

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the atomic ratio of hydrogen to oxygen in hydrogen peroxide?

1:2

1:1

3:1

2:1

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary component of an atom's mass?

Neutrons

Electrons

Protons

Nucleus

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How much smaller is the nucleus compared to the entire atom?

10 times

100,000 times

100 times

1,000 times

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the charge of a neutron?

Negative

Positive

Neutral

Variable

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