Development of the Periodic Table

Understand that elements have different properties and how the periodic table has been developed over time according to our knowledge of these properties.

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.What is the name for a tiny particle that makes up everything?

1/6

Q2.Substances made up of only one type of atom are called ...

2/6

Q3.The atomic number is ...

3/6

Q4.The periodic table is a list of all the known ...

4/6

Q5.The horizontal rows in the periodic table are called ...

5/6

Q6.The verticle columns in the periodic table are called ...

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.What is the name for a tiny particle that makes up everything?

1/6

Q2.Substances made up of only one type of atom are called ...

2/6

Q3.The atomic number is ...

3/6

Q4.The periodic table is a list of all the known ...

4/6

Q5.The horizontal rows in the periodic table are called ...

5/6

Q6.The verticle columns in the periodic table are called ...

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:

Development of 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.Which two are examples of physical properties?

Select two (2) boxes

1/6

Q2.Starting with the earliest, put these scientists in order of their contribution to the development of the periodic table.
  • Moseley
  • Newlands
  • Mendeleev

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.

2/6

Q3.The discovery of which subatomic particle allowed Moseley to reorder the periodic table?

3/6

Q4.Elements in the same group of the periodic table share similar ...

4/6

Q5.What is the name of the horizontal rows in the modern periodic table?

5/6

Q6.Match each of the following scientists with their contribution to the development of the periodic table.
  • Newlands
  • Mendeleev
  • Moseley
  • ordered the elements based on their atomic number
  • put elements into groups of 8 based on their properties
  • occasionally ignored the atomic weight as thought it incorrect

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:

Development of 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.Which two are examples of physical properties?

Select two (2) boxes

1/6

Q2.Starting with the earliest, put these scientists in order of their contribution to the development of the periodic table.
  • Moseley
  • Newlands
  • Mendeleev

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.

2/6

Q3.The discovery of which subatomic particle allowed Moseley to reorder the periodic table?

3/6

Q4.Elements in the same group of the periodic table share similar ...

4/6

Q5.What is the name of the horizontal rows in the modern periodic table?

5/6

Q6.Match each of the following scientists with their contribution to the development of the periodic table.
  • Newlands
  • Mendeleev
  • Moseley
  • occasionally ignored the atomic weight as thought it incorrect
  • ordered the elements based on their atomic number
  • put elements into groups of 8 based on their properties

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: Development of the Periodic Table

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