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311412
Atoms, Elements and Compounds
Description
Mind Map on Atoms, Elements and Compounds, created by lmorris537 on 29/10/2013.
Mind Map by
lmorris537
, updated more than 1 year ago
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lmorris537
over 10 years ago
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Resource summary
Atoms, Elements and Compounds
Atoms
Have a small central nucleus made up of protons and neutrons around the electrons.
The electrons are involved in chemical reactions
All substances are made up of atoms
About 100 different types
Form chemical bonds by loosing, gaining or sharing a small number of electrons
Represented by a chemical symbol
When 2 or more atoms join together a molecule is formed
Atoms in elements and compounds are held together by taking or sharing electrons
Elements
A substance which contains one type of atom
Can have very different properties
e.g silver, copper and gold are shiny solids
e.g oxygen, nitrogen and chlorine are gasses
Are listed in the periodic table
Compounds
Contain 2 or more elements bonded together
e.g hydrogen and oxygen = water
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