Development of the atomic model

In this lesson, we will describe the work that led to an increased understanding of what atoms are made of and how this led to changes to the atomic model.

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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.True or false - Evaporating, condensing, melting and freezing are all examples of chemical change.

True False

1/10

Q2.In which part of the atom are protons and neutrons found?

Energy shells Nucleus Everywhere

2/10

Q3.What is the CHARGE of a proton

1 +1 -1 0

3/10

Q4.What is the CHARGE of an electron?

-1 +1 1 1/2000

4/10

Q5.What is the mass of a neutron?

0 1 -1 +1

5/10

Q6.What does the atomic number represent?

The number of protons The number of neutrons The number of electrons and protons The number of protons and neutrons

6/10

Q7.What does the atomic mass represent?

The number of protons The number of neutrons The number of protons and electrons The number of protons and neutrons

7/10

Q8.Lithium has an atomic mass of 7 and an atomic number of 3. How many protons are there in lithium?

4 7 3 10

8/10

Q9.Lithium has an atomic mass of 7 and an atomic number of 3. How many electrons are there in lithium?

4 7 3 10

9/10

Q10.Lithium has an atomic mass of 7 and an atomic number of 3. How many neutrons are there in lithium?

4 7 3 10

10/10

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

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.True or false - Evaporating, condensing, melting and freezing are all examples of chemical change.

True False

1/10

Q2.In which part of the atom are protons and neutrons found?

Energy shells Nucleus Everywhere

2/10

Q3.What is the CHARGE of a proton

1 +1 -1 0

3/10

Q4.What is the CHARGE of an electron?

-1 +1 1 1/2000

4/10

Q5.What is the mass of a neutron?

0 1 -1 +1

5/10

Q6.What does the atomic number represent?

The number of protons The number of neutrons The number of electrons and protons The number of protons and neutrons

6/10

Q7.What does the atomic mass represent?

The number of protons The number of neutrons The number of protons and electrons The number of protons and neutrons

7/10

Q8.Lithium has an atomic mass of 7 and an atomic number of 3. How many protons are there in lithium?

4 7 3 10

8/10

Q9.Lithium has an atomic mass of 7 and an atomic number of 3. How many electrons are there in lithium?

4 7 3 10

9/10

Q10.Lithium has an atomic mass of 7 and an atomic number of 3. How many neutrons are there in lithium?

4 7 3 10

10/10

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This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Development of the atomic model

This quiz will test you on your understanding on the developments in the atomic model. It was also contain a few revision questions from earlier on in this topic.

Q1.What method would you use to separate a mixture of SOLUBLE substances?

Filtrate Distillation Crystallisation Chromatography

1/8

Q2.What physical property is used to separate a mixture of two liquids during distillation?

Boiling point Magnetic properties Solubility None of the above

2/8

Q3.What is the MASS of a proton?

0 1 +1 -1

3/8

Q4.Who discovered the plum pudding model?

John Dalton James Chadwick JJ Thomson Niels Bohr

4/8

Q5.Which scientist discovered the neutron?

James Chadwick John Dalton JJ Thompson Democritus Niels Bohr

5/8

Q6.Which statement best describes the arrangement of electrons in plum pudding model?

Electrons are randomly arranged throughout the ball of positive charge Electrons are in fixed positions on energy shells Electrons are found in the nucleus Electrons are found on the outside of the atom

6/8

Q7.Which one of the following scientists was involved in developing the nuclear model?

Ernest Rutherford JJ Thomson John Dalton

7/8

Q8.Which of the following statements is TRUE:

The plum pudding model contains a nucleus whereas the nuclear model doesn't contain a nucleus Electrons are scattered randomly in the nuclear model whereas electrons are in fixed positions in the plum pudding model The nuclear model has a nucleus whereas the plum pudding doesn't contain a nucleus

8/8

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Development of the atomic model

This quiz will test you on your understanding on the developments in the atomic model. It was also contain a few revision questions from earlier on in this topic.

Q1.What method would you use to separate a mixture of SOLUBLE substances?

Filtrate Distillation Crystallisation Chromatography

1/8

Q2.What physical property is used to separate a mixture of two liquids during distillation?

Boiling point Magnetic properties Solubility None of the above

2/8

Q3.What is the MASS of a proton?

0 1 +1 -1

3/8

Q4.Who discovered the plum pudding model?

John Dalton James Chadwick JJ Thomson Niels Bohr

4/8

Q5.Which scientist discovered the neutron?

James Chadwick John Dalton JJ Thompson Democritus Niels Bohr

5/8

Q6.Which statement best describes the arrangement of electrons in plum pudding model?

6/8

Q7.Which one of the following scientists was involved in developing the nuclear model?

Ernest Rutherford JJ Thomson John Dalton

7/8

Q8.Which of the following statements is TRUE:

8/8

Lesson summary: Development of the atomic model

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Atomic structure and periodic table (HT)
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Development of the atomic model

Intro quiz - Recap from previous lesson

Intro quiz - Recap from previous lesson

Video

Worksheet

Development of the atomic model

Development of the atomic model

Lesson summary: Development of the atomic model

It looks like you have not completed one of the quizzes.

Time to move!

The next lesson in: Atomic structure and periodic table (HT) is: Isotopes

Browse Oak's lessons:

The next lesson in:
Atomic structure and periodic table (HT)
is:
Isotopes