AQA Physical Chemistry AS and A2 0.0 / 5 ? ChemistryAll LevelsAQA Created by: Nev045Created on: 11-04-18 16:17 What are the three fundamental particles that make up an atom? Protons, Neutrons and Electrons 1 of 12 What are the properties of a neutron? Relative Mass: 1 Relative Charge: 0 (neutral - no charge) 2 of 12 What are the properties of a proton? Relative Mass: 1 Relative Charge: +1 3 of 12 What are the properties of an electron? Relative Mass: 1/2000 , 0 Relative Charge: -1 4 of 12 Define 'Mass Number' The total number of protons and neutrons in the nucleus of an atom 5 of 12 Define 'Atomic (Proton) Number' The number of protons in the nucleus of an atom 6 of 12 Whats the overall charge of an atom? 0 / neutral / no charge 7 of 12 How do atoms form ions? By losing or gaining electrons 8 of 12 What is an Isotope? An atom with the same number of atoms as another atom but a different number of neutrons 9 of 12 Why do isotopes of an element have the same chemical properties? Because they all have the same electron configuration 10 of 12 Define 'Relative Atomic Mass' The average mass of an atom of an element on a scale where an atom of carbon-12 is exactly 12 11 of 12 Define 'Relative Molecular Mass' The average mas of a molecule on a scale where an atom of carbon-12 is excatly 12 12 of 12
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