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A Level Physical Chemistry AQA Practice Questions and Detailed Answers

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1 relative mass of a proton 1 relative mass of a neutron 1/1840 relative mass of an electron +1 relative charge of a proton 0 relative charge of a neutron -1 Relative charge of an electron strong nuclear force How is the nucleus held together nuclear force is the nuclear force or electrostatic force stronger number of protons what does the atomic number represent atomic number z the number of protons in an atom number of protons and neutrons what does the mass number represent mass number (A) the number of nucleons in an atom isotopes atoms of the same element that have different numbers of neutrons electrons what determines the reactivity of an atom H1/H2/H3 hydrogen isotopes Cl35/Cl37 Chlorine isotopes Br79/Br81 Bromine isotopes C-14 Carbon isotope used for carbon dating

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  • a level physical chemistry aqa practice questions
  • 1 relative mass of a proton
  • 1 relative mass of a neutron

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