Chemistry definitions 0.0 / 5 ? ChemistryGeneralGCSEAQA Created by: leen1001Created on: 10-09-17 07:01 What is a chemical bond Holds two atoms together after a reaction 1 of 16 Ionic bond Between metal and non metal held together by strong ectrostatic forces of attraction between positive and negative ions 2 of 16 Covalent bond Between two non metals, electrons shared 3 of 16 Structural formula A diagram which shows which atoms are bonded to which 4 of 16 Electronic theory States what when atoms react they loose, gain or share electrons to become stable 5 of 16 Giant ionic lattice Regular structure made from oppositely charged ions 6 of 16 Valency Number of electrons available for bonding, ironically or covelantelly 7 of 16 Simple moldecule Small molecules with covalent bonds and just a few atoms 8 of 16 Intermolecular forces Weak attraction forces between molecules 9 of 16 Giant covalent structure large numbers of atoms joined by covalent bonds 10 of 16 Allotropes Different crystalline forms of the same material e.g. Graphite and diamond 11 of 16 Fullerene An allotrope of carbon 12 of 16 Buckyballs A fullerene which formula C60 13 of 16 Giant metallic structure Positive metal ions surrounded by a seas of delocalised electrons 14 of 16 Malleable Property of metal meaning it can be shaped 15 of 16 Memory metal Metal alloy that returns to its original shape when heated 16 of 16
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