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# Unit 1: Atomic structure

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## About this unit

Are you ready to dive into the wonderful world of chemistry? In this unit, we'll cover some of chemistry's most fundamental topics, including atoms, isotopes, ions, and the development of atomic structure. We’ll also explore different ways of representing atoms, such as through Bohr models and electron configurations.

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### Practice

- Understand: atomic structureGet 3 of 4 questions to level up!
- Apply: atomic structureGet 3 of 4 questions to level up!

### Learn

### Practice

- Understand: isotopesGet 3 of 4 questions to level up!
- Apply: isotopesGet 3 of 4 questions to level up!
- Apply: calculating average atomic massGet 3 of 4 questions to level up!
- Understand: ionsGet 3 of 4 questions to level up!
- Apply: ionsGet 3 of 4 questions to level up!

Level up on the above skills and collect up to 560 Mastery points

### Learn

### Practice

- Understand: Bohr modelsGet 3 of 4 questions to level up!
- Apply: Bohr modelsGet 3 of 4 questions to level up!
- Apply: the electromagnetic spectrumGet 3 of 4 questions to level up!
- Apply: atomic spectraGet 3 of 4 questions to level up!

Level up on the above skills and collect up to 320 Mastery points

### Learn

### Practice

- Apply: electron configurationsGet 3 of 4 questions to level up!

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Level up on all the skills in this unit and collect up to 1,200 Mastery points!#### Unit test

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