Unit 1: Foundation Chemistry Test yourself on AQA AS Unit 1 Chemistry. 0.0 / 5 ? ChemistryAtomic StructureAmount of SubstanceBondingPeriodicityIntroduction to Organic ChemistryAlkanesASAQA Created by: ClumsyIdiotCreated on: 05-01-14 16:56 What are the nucleons? Protons and Neutrons 1 of 7 What is the relative mass of an electron? 1/1840 2 of 7 Where are electrons located? Surrounding the nucleus 3 of 7 The general formulae for the number of electrons in each shell: 2n² 4 of 7 What is the "Atomic number" and what symbol is it represented by? Z, the number of protons in the nucleus 5 of 7 What is the "Mass number" and what symbol is it represented by? A, the number of protons and neutrons in the nucleus 6 of 7 What are "Isotopes"? Atoms with the same number of protons but different numbers of neutrons 7 of 7
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