Ionic Bonding Revision 0.0 / 5 ? ChemistryIonic BondingA2/A-levelOCR Created by: ElishaGCreated on: 20-02-17 10:26 What is an ion? A positively or negatively charged atom or a covalently bonded group of atoms where the number of electrons differs from the number of protons. 1 of 11 What is a polyatomic ion? An ion containing more than one type of atom. 2 of 11 What is an anion? A negatively charged ion with more electrons than protons. 3 of 11 What is a cation? A positively charged ion with more protons than electrons. 4 of 11 What is a giant ionic lattice? A 3D structure of oppositely charged ions, bonded together by strong ionic bonds. 5 of 11 What is solubility? A measure of how well one substance dissolves into another. 6 of 11 What is melting point? The temperature at which a solid becomes a liquid at a fixed pressure. 7 of 11 What is ionic bonding? The electrostatic attraction between oppositely charged ions. 8 of 11 What is the melting point of ionic compounds? High, lots of energy required to break strong electrostatic attraction between oppositely charged ions. 9 of 11 What is the electrical conductivity of ionic compounds? Solid-ions held in place, doesn't conduct. Liquid/molten-ions free to move and carry charge, does conduct. 10 of 11 What is the solubility of ionic compounds? Mostly soluble. Polar water molecules attracted to the oppositely charged ions. water molecules break ionic bonds. 11 of 11
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