18 terms

Year 8 Chemistry - Mr. Hung

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Atom
smallest particle of an element that can take part in a chemical reaction
Carbon
Non-metallic element with the symbol C; the only non-metal that conducts electricity as graphite
Compound
Two or more elements chemically joined together
Element
Pure substance made up of only one type of atom
Helium
Noble gas with the symbol He; non-metal that does not react
Hydrogen
Non-metallic gas with the symbol H; element with the smallest atom
Iron
Metallic element with the symbol Fe; magnetic and the only metal that rusts
Metal
Substance that is shiny and a conductor
Oxide
Compound produced when an element burns in oxygen
Periodic Table
Table of elements
Reaction
Change where products are different from reactants
Sulphide
Compound containing an element and sulphur
Symbol
The letters used to represent an element
Word Equation
Summary of chemical reaction using words only
Formula
Letters and numbers used to represent a compound
Molecule
The smallest part of an element or compound
Product
Substance made during a chemical reaction
Reactant
Substance that reacts with another