C1 END OF CHAPTER ONE 0.0 / 5 ? ChemistryAtomsGCSEAQA Created by: connie.hogbenCreated on: 09-05-17 20:00 Sort these elements into elements and compounds Elements: Ca, H2, Ne, O2 Compounds: CH4, HCL, MgO, SO2 1 of 8 What are the names and numbers of the particles in an atom of sodium? (Atomic number 11, mass number 23) Protons=11 Electrons=11 Neutrons=12 2 of 8 What determines the order of elements in the periodic table? Their atomic numbers 3 of 8 Why are boron and aluminium in the same group on the periodic table? They have the same amount of electrons on their outer shells 4 of 8 Name the type of bond in CaO Ionic 5 of 8 What happens when a sodium and chlorine atom react together They form an ionic bond which has transfers of electrons. Sodium transfers its outer shell electron to chlorine so both have full outer shells. 6 of 8 Calcium carbonate is thermally decomposed, 20g of calcium carbonate is produced 11.2g of calcium oxide. How much CO2 would be produced? 8.8g 7 of 8 Balance: Ca+O2--->CaO 2Ca+O2--->2CaO 8 of 8
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