Chemistry C2 Revision Quiz 1 (AQA) Questions on the first half of the syllabus for AQA Additional Chemistry exam. 3.5 / 5 based on 25 ratings ? ChemistryStructure and bondingGCSEAll boards Created by: KarmelCreated on: 06-01-10 17:00 How are atoms ordered in the periodic table? By their atomic number 1 of 20 Protons and neutrons have a relative mass of 1. What is the relative mass of an electron? Very small 2 of 20 How are the electrons in an atom arranged? In energy levels 3 of 20 Atoms with the same number of energy levels belong in the same.... of the periodic table. Period 4 of 20 Elements that can form ionic compounds are in groups... 1, 2, 6 and 7 5 of 20 Covalent bonds are formed when.... Atoms share electrons 6 of 20 The atoms in metals are arranged... In regular layers 7 of 20 The positive ions in metals are hed together by... delocalised electrons 8 of 20 Ionic compounds conduct electricity... When melted or dissolved in water 9 of 20 Simple molecules... have no overall charge. 10 of 20 Delocalised electrons in metas allow them to... conduct heat and electricity well. 11 of 20 The mass number tells you the total number of... protons and neutrons in the atom. 12 of 20 Isotopes are atoms of the same element with different numbers of... neutrons. 13 of 20 We compare the masses of atoms by measuring them relative to atoms of... carbon-12. 14 of 20 One mole of any substance always contains... the same number of particles. 15 of 20 What can tell us the number of moles of substances in the chemical reaction? Chemical equations 16 of 20 The... yield of a chemical reaction tells us how much product is made compared with the maximum amount that could be made. Percentage 17 of 20 The yield of a chemical reaction describes how much... product is made. 18 of 20 It is important to maximise atom economy to... conserve resources and reduce pollution. 19 of 20 In a closed system the rate of the forward and backward reactions are equal at... equilibrium. 20 of 20
Comments
Report
Report
Report
Report
Report