Chemistry

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Electronic structure and the periodic table

Represent electronic structures of atoms using numbers and diagrams, and explain how electronic structure is linked to the group and period number in the periodic table.

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.Which subatomic particles are located in shells?

1/6

Q2.The energy levels of an atom are also known as .

Fill in the blank.

2/6

Q3.All known elements are displayed in the table.

Fill in the blank.

3/6

Q4.The number of electrons in an atom is equal to the number of ...

4/6

Q5.Which one of these elements is a metal?

5/6

Q6.Which of these elements is a non-metal?

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.Which subatomic particles are located in shells?

1/6

Q2.The energy levels of an atom are also known as .

Fill in the blank.

2/6

Q3.All known elements are displayed in the table.

Fill in the blank.

3/6

Q4.The number of electrons in an atom is equal to the number of ...

4/6

Q5.Which one of these elements is a metal?

5/6

Q6.Which of these elements is a non-metal?

6/6

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Unit quizzes are being retired in August 2023

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

Electron Configuration and the Periodic Table

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

Q1.Carbon has six protons and electrons.

Fill in the blank.

1/6

Q2.What is the correct electronic structure for beryllium?

2/6

Q3.Which element has the electronic structure of 2,8,4?

3/6

Q4.Match the corresponding terms.
  • group number
  • period number
  • atomic number
  • number of shells
  • number of protons
  • number of outer electrons

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.Match the element to the number of electrons in the second shell of its atom.
  • hydrogen
  • beryllium
  • phosphorus
  • neon
  • 8
  • 8 (but has a third shell)
  • 2
  • 0

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.

5/6

Q6.Match the element to the number of shells in its atom.
  • helium
  • magnesium
  • carbon
  • potassium
  • 3
  • 2
  • 4
  • 1

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.

6/6

Unit quizzes are being retired in August 2023

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

Electron Configuration and the Periodic Table

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

Q1.Carbon has six protons and electrons.

Fill in the blank.

1/6

Q2.What is the correct electronic structure for beryllium?

2/6

Q3.Which element has the electronic structure of 2,8,4?

3/6

Q4.Match the corresponding terms.
  • group number
  • period number
  • atomic number
  • number of protons
  • number of outer electrons
  • number of 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.

4/6

Q5.Match the element to the number of electrons in the second shell of its atom.
  • hydrogen
  • beryllium
  • phosphorus
  • neon
  • 8
  • 8 (but has a third shell)
  • 2
  • 0

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.

5/6

Q6.Match the element to the number of shells in its atom.
  • helium
  • magnesium
  • carbon
  • potassium
  • 4
  • 2
  • 3
  • 1

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.

6/6

Lesson summary: Electronic structure and the periodic table

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Atomic structure and the periodic table
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Why elements react

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