Atomic structure

Describe the structure of an atom in terms of the number of protons, neutrons and electrons. Understand atomic mass and atomic number and use them to calculate the number of subatomic particles.

Unit quizzes are being retired in August 2023

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Quiz:

Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Q1.An element is a substance made of type of atom.

Fill in the blank.

1/6

Q2.The periodic table shows all of the existing chemical .

Fill in the blank.

2/6

Q3.What is the correct chemical symbol for calcium?

3/6

Q4.The nucleus is the ______ of the atom.

4/6

Q5.Which two statements are correct about electrons?

Select two (2) boxes

5/6

Q6.Which statement describes the current accepted model of the atom?

6/6

Unit quizzes are being retired in August 2023

Why we're removing unit quizzes from the website >
Quiz:

Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Q1.An element is a substance made of type of atom.

Fill in the blank.

1/6

Q2.The periodic table shows all of the existing chemical .

Fill in the blank.

2/6

Q3.What is the correct chemical symbol for calcium?

3/6

Q4.The nucleus is the ______ of the atom.

4/6

Q5.Which two statements are correct about electrons?

Select two (2) boxes

5/6

Q6.Which statement describes the current accepted model of the atom?

6/6

Video

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Worksheet

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Unit quizzes are being retired in August 2023

Why we're removing unit quizzes from the website >
Quiz:

Atomic structure

Don’t worry if you get a question wrong! Forgetting is an important step in learning. We will recap next lesson.

Q1.Finish the sentences about the atom.
  • Protons and neutrons are located in the ...
  • Electrons are located in the ...
  • There is nothing located in the ...
  • shells.
  • space between shells and nucleus.
  • nucleus.

Where you see this icon you can drag and drop! If you are using your keyboard select and move using space and the arrow keys.

1/6

Q2.Which two statements are correct about protons?

Select two (2) boxes

2/6

Q3.What is the overall charge of the atom?

3/6

Q4.How do you calculate the amount of each subatomic particle in an atom?
  • protons
  • electrons
  • neutrons
  • the atomic mass subtract the atomic number
  • same as the atomic number
  • equal to the number of protons

Where you see this icon you can drag and drop! If you are using your keyboard select and move using space and the arrow keys.

4/6

Q5.How many electrons does phosphorus have?

5/6

Q6.How many neutrons does zinc have?

6/6

Unit quizzes are being retired in August 2023

Why we're removing unit quizzes from the website >
Quiz:

Atomic structure

Don’t worry if you get a question wrong! Forgetting is an important step in learning. We will recap next lesson.

Q1.Finish the sentences about the atom.
  • Protons and neutrons are located in the ...
  • Electrons are located in the ...
  • There is nothing located in the ...
  • space between shells and nucleus.
  • nucleus.
  • shells.

Where you see this icon you can drag and drop! If you are using your keyboard select and move using space and the arrow keys.

1/6

Q2.Which two statements are correct about protons?

Select two (2) boxes

2/6

Q3.What is the overall charge of the atom?

3/6

Q4.How do you calculate the amount of each subatomic particle in an atom?
  • protons
  • electrons
  • neutrons
  • equal to the number of protons
  • the atomic mass subtract the atomic number
  • same as the atomic number

Where you see this icon you can drag and drop! If you are using your keyboard select and move using space and the arrow keys.

4/6

Q5.How many electrons does phosphorus have?

5/6

Q6.How many neutrons does zinc have?

6/6

Lesson summary: Atomic structure

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