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Exploring Isotopes and Their Properties

Exploring Isotopes and Their Properties

Assessment

Interactive Video

Chemistry

6th - 10th Grade

Practice Problem

Medium

Created by

Jackson Turner

Used 7+ times

FREE Resource

The video explains that all atoms of an element have the same atomic number, meaning the same number of protons. However, atoms can have different mass numbers due to varying numbers of neutrons, leading to isotopes. Isotopes are defined as atoms with the same number of protons but different numbers of neutrons. The video uses Carbon-12 and Carbon-14 as examples to illustrate isotopes, showing how they have the same atomic number but different masses due to differing neutron counts. It also mentions other isotopes like Hydrogen and Chlorine. Despite having different masses, isotopes have identical chemical properties because these are determined by electrons, not neutrons.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the atomic number of an element represent?

The number of neutrons

The mass number

The number of protons

The number of electrons

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the mass number of an atom?

The number of protons plus electrons

The number of protons plus neutrons

The number of protons only

The number of neutrons plus electrons

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What defines isotopes of an element?

Same number of protons, different number of neutrons

Same number of neutrons, different number of protons

Same number of electrons, different number of protons

Same number of neutrons, different number of electrons

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why are Carbon and Nitrogen not considered isotopes?

They have the same mass number

They have different numbers of protons

They have different numbers of neutrons

They have the same number of neutrons

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many neutrons does Carbon-12 have?

6

8

12

14

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many neutrons does Carbon-14 have?

6

12

8

14

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is NOT an example of isotopes?

Chlorine-35 and Chlorine-37

Hydrogen and Deuterium

Carbon-12 and Carbon-14

Carbon and Nitrogen

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