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Autosave: 2024-05-09 07:45:04

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thomasabishop 2024-05-09 07:45:04 +01:00
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zk/Matter_and_atoms.md
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@ -13,7 +13,7 @@ tags: [physics]
- An element is a substance that cannot be reduced to a simpler substance by - An element is a substance that cannot be reduced to a simpler substance by
chemical means. chemical means.
- The chemical combination of two or more elements is a compound. Compounds - The chemical combination of two or more elements is a compound. Compounds
_can_ be separated by reduced by chemical means but they cannot be _can_ be separated or reduced by chemical means but they cannot be
physically separated. physically separated.
- A _physical_ (note not _chemical_) combination of elements and compounds is - A _physical_ (note not _chemical_) combination of elements and compounds is
a mixture. a mixture.
@ -24,8 +24,8 @@ tags: [physics]
- Elements are made up of **atoms**. - Elements are made up of **atoms**.
- A **molecule** is a type of compound where the atoms of two types of elements - A **molecule** is a type of compound where the atoms of two types of elements
have joined together. For example Sodium and Chlorine are two elements that have joined together. For example sodium and chlorine are two elements that
can join to form Sodium Chloride. We call this **chemical bonding**. can join to form sodium chloride. We call this **chemical bonding**.
## Atomic particles ## Atomic particles
![](/img/atom-diagram.svg) ![](/img/atom-diagram.svg)