Cations are ions that are positively charged. Anions are ions that are negatively charged. Ions are charged atoms or molecules. If a balanced atom loses one or more electrons, it will become a ...
This interactive quiz is suitable for students of National 5 chemistry. Quiz: The periodic table and atoms This interactive National 5 chemistry quiz is suitable for students revising the periodic ...
Chemists use symbols and formulae to represent elements, ions and compounds. Word equations and balanced chemical equations model the changes that happen in chemical reactions. Hazards and risks - ...
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