
Isotopes
Quiz by Oak National Academy: GCSE Chemistry Edexcel Foundation
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6 questions
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- Q1Which two subatomic particles are present in the nucleus of an atom?Users sort answers between categoriesSorting30s
- Q2The relative mass of a neutron is ...Users enter free textType an Answer30s
- Q3What is the mass number of an atom?number of protonsnumber of electronsnumber of neutronstotal number of protons and neutronstotal number of protons and electrons30s
- Q4Order the method for working out the number of the three subatomic particles in an atom of sodium. Start with the number of protons, then work out the number of electrons, then finally neutrons.Users link answersLinking30s
- Q5Match the atoms with the number of neutrons in their nucleus. Use your periodic table to help.Users link answersLinking30s
- Q6Chlorine atoms mainly exist as ³⁵Cl and ³⁷Cl. Why are the mass numbers different?³⁵Cl has 18 neutrons and ³⁷Cl has 20 neutrons.³⁵Cl has 18 protons and ³⁷Cl has 20 protons.³⁵Cl has 18 neutrons and ³⁷Cl has 20 protons.³⁷Cl has gained two electrons to get a full outer shell.This is a mistake as they should all be the same.30s