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8 Atoms and Elements

Atoms and elements keywords

A metal which reacts easily with water. calcium
All the atoms in an element are the same. element
Elements that are shiny, conduct heat and electricity well, and often have high melting and boiling points. metals
Elements that are not shiny, and do not conduct heat and electricity well. non-metals
Table that shows all the elements. Periodic table
Soft, shiny, reactive, silver-coloured metal. potassium
A mixture of different metals. alloy
The smallest part of an element you can get. atom
A substance that cannot be split up into anything simpler by chemical reactions. element
Two or more different substances that are not joined to each other. mixture
The letter or letters that represent an element. symbol
Something which allows electricity to flow through it easily. electrical conductor
Something which allows heat to flow through it easily. heat conductor
Temperature where a substance changes from solid to liquid melting point
Temperature where a substance changes from liquid to gas boiling point
Ways of describing a substance. properties
Reflects light well. shiny
A yellow, non-metal element. Solid at room temperature. sulfur
A combination of symbols and numbers that show how many atoms of different kinds there are in a particular compound. chemical formula
Substances that can be split up into simpler substances. compounds
Two or more atoms joined together. molecule
New chemical formed in a chemical reaction. product
Chemicals that join together to form a new substance. reactants
Chemical name for common salt. sodium chloride
Created by: grovebiol



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