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- 1chemistry-c1: atomic structure 1.1 Atoms )All substances are made of atoms. )The periodic table lists all the chemical elements, with 8 main groups each containing elements with similar chemical properties. )Elements are made of only 1 type of atom. )Compounds contain more the 1 element. )An atom has a tiny nucleus at its centre, surrounded my electrons.1.2 Chemical equations
)No new atoms are ever created or destroyed in a chemical reaction: the total mass of reactants = the total mass of products.
)There is the same number of each type of atom on each side of a balanced symbol equation.
)You can include state symbols to give extra information in balanced symbol equations. The symbols are (s) for solids, (l) for liquids, (g) for gases, and (aq) for aqueous solutions. - 2—
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- Fichas sobre Sin título, creado por Anna-Belle Boxall-Avery el 22/04/2021.
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