IB Chemistry Topic 1 Notes
This page contains our IB Chemistry notes for topic 1. By reading each one of these notes, you will fully cover the content for IB Chemistry 'Models of Particulate Matter'.
Chapters
S1.1: Particulate matter
1. Types of matter
S1.2: The atom
1. Atoms
S1.2: Further atoms (HL)
1. Mass spec intro
S1.3: Electron configurations
1. Electromagnetic spectrum
S1.3: Further electron configurations (HL)
1. Emission energy
S1.4: Moles
1. Moles
S1.5: Ideal gases
1. Ideal gases
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Types of matter
To begin chemistry, it is important to understand that matter can appear as three types of substances: elements, compounds, and mixtures.
- Elements are the simplest substances made of atoms that cannot be broken down.
- Compounds are substances made up of two or more atoms chemically bonded in fixed ratios and have different properties than their components.
- Mixtures are substances made up of more than one element or compound not chemically bonded together so that they retain their individual properties. There are two different types of mixtures:
- Homogeneous – the components of the mixture are uniformly distributed. They thus cannot be distinguished from one another. This often occurs when two components are in the same state (such as water & alcohol), but this may not always be the case (such as water & oil).
- Heterogeneous – the components of mixture are not uniformly distributed. They thus can be distinguished from one another. This often occurs when two components are in different states (such as water & sand), but again, this may not always be the case (such as water & sugar).
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