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Understanding Mercury Isotopes and Atomic Structure

Understanding Mercury Isotopes and Atomic Structure

Assessment

Interactive Video

Chemistry

9th - 10th Grade

Practice Problem

Hard

Created by

Jackson Turner

FREE Resource

This video tutorial explains how to determine the protons, neutrons, electrons, and mass number for mercury isotopes. It covers the atomic number, which remains constant at 80 for all isotopes, and explains that in a neutral element, the number of protons equals the number of electrons. The video also demonstrates how to calculate the mass number and the number of neutrons for different isotopes of mercury using hyphen notation. Finally, it discusses the concept of average atomic mass based on the abundance of naturally occurring isotopes.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the atomic number of mercury?

82

81

80

79

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many protons does mercury have?

81

79

80

78

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In a neutral atom of mercury, how many electrons are present?

78

79

80

81

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the mass number of an isotope represent?

Only the number of protons

Only the number of neutrons

The sum of protons and neutrons

The sum of electrons and neutrons

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If an isotope of mercury is represented as mercury-199, what is its mass number?

198

199

200

201

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many neutrons are in mercury-199?

120

119

118

121

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

For mercury-200, how many neutrons are present?

119

120

122

121

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