Atomic Structure and Isotopes

Atomic Structure and Isotopes

Assessment

Interactive Video

Chemistry, Physics, Science

9th - 10th Grade

Practice Problem

Medium

Created by

Patricia Brown

Used 1+ times

FREE Resource

This video tutorial covers the basics of atoms and isotopes, explaining how to use the periodic table to determine the number of protons, neutrons, and electrons in an atom. It discusses the concept of isotopes, using carbon as an example, and provides practice problems with elements like molybdenum and barium to illustrate how to calculate atomic properties.

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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What defines the identity of an element?

Atomic mass

Number of electrons

Number of protons

Number of neutrons

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is an isotope?

Atoms with the same atomic mass

Atoms with different numbers of protons

Atoms with the same number of protons but different masses

Atoms with different numbers of electrons

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the atomic number of an element represent?

The atomic mass

The number of neutrons

The number of protons

The number of electrons

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How is the atomic mass of an element determined?

By adding the number of protons and electrons

By adding the number of protons and neutrons

By adding the number of protons, neutrons, and electrons

By adding the number of neutrons and electrons

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is an isotope of carbon?

Carbon-18

Carbon-15

Carbon-12

Carbon-10

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are nuclides?

Atoms with the same number of protons but different masses

Atoms with the same atomic mass

Atoms with the same number of electrons

Atoms with different numbers of protons

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How can you find the number of electrons in a neutral atom?

By adding the number of protons and neutrons

By subtracting the number of neutrons from the atomic mass

By looking at the atomic number

By looking at the atomic mass

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