Chemistry Basics 0.0 / 5 ? ChemistryBasicsA2/A-levelOCR Created by: inesreynoldsCreated on: 14-09-17 17:07 What are atoms? All matter is made up of atoms. 1 of 6 What are Ions? Charged particles(when atoms or molecules lose or gain an electron). 2 of 6 What is a positive ion called? Cations. 3 of 6 What is a negative ion called? Anion. 4 of 6 When are molecules formed? Two or more atoms join together by sharing electrons. (Covalent bond). 5 of 6 How are compounds formed? When different elements react together, they become chemically joined (ionic or covalent bonds). 6 of 6
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