Chemistry 2a 3.0 / 5 based on 1 rating ? ChemistryStructure and bondingGCSEAQA Created by: Abbey HancockCreated on: 08-04-13 11:33 What is the mass number? Total number of protons and neutrons 1 of 16 What is a compound? At least 2 atoms chemically bonded together 2 of 16 What is it hard to do to a compound? Separate the atoms 3 of 16 What is about an isotope? They have a different number of neutrons 4 of 16 Which statement is true? Isotopes have the same atomic number but different mass numbers 5 of 16 What is ionic bonding? It's where 2 atoms bond by losing or gaining electrons forming ions which become strongly attracted to eachother 6 of 16 What structure do ionic compounds have? A regular lattice structure 7 of 16 Which statement is true? In a lattice structure there is a very strong electrostatic forces of attraction between oppositely charged ions, in all directions 8 of 16 What are properties of ionic compounds? High melting points, high boiling points, easily dissolved 9 of 16 What does dissolving a ionic compound lead to? The ions are separate and free to move so they will carry electric current 10 of 16 What Groups are most likely to form ions? 1&2 and 6&7 11 of 16 What is the overall charge of any compound? 0 12 of 16 Which statement is true? Giant covalent structures are macromolecules, much like ionic lattices but with no charge 13 of 16 Metal Properties are all due to the... Sea of free electrons 14 of 16 The free electrons enable the metal to be... good conductors of heat and electricity 15 of 16 What do smart materials do? They have properties that can help in everyday life e.g. shape memory 16 of 16
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