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Atoms to molecules

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Harvey Buckle

on 3 November 2017

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Transcript of Atoms to molecules

Atoms to molecules
What is the formula of:

1. Carbon dioxide
2. Water
3. Sulphur dioxide
4. Iron Sulphide
Elements and atoms
There are over a hundred different elements. The atoms in a particular element are the same as each other, and they are different from the atoms of all other elements. For example, lead and gold are elements. A piece of pure gold contains only gold atoms. A piece of pure lead contains only lead atoms.
The atoms of some elements do not join together, but instead they stay as separate atoms. Helium is like this. The atoms of other elements, such as hydrogen and oxygen, join together to make molecules.
To know how we go from atoms of elements to molecules of elements and compounds
To build models
To create related display work
Some questions and display work
A compound is a substance that contains atoms of two or more different elements, and these atoms are chemically joined together. For example, water is a compound of hydrogen and oxygen. Each of its molecules contains two hydrogen atoms and one oxygen atom. There are very many different compounds.
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