Atomic Structure and Isotopes 0.0 / 5 ? PhysicsAtomic Structure and IsotopesGCSEEdexcel Created by: RinkyPereraCreated on: 17-04-17 11:51 What are the three sub-atomic particles that are in an atom? Protons, neutrons and electrons 1 of 9 Which sub-atomic particles are found in the nucleus? Protons and neutrons 2 of 9 What is the number of protons always the same as? The number of electrons 3 of 9 What is it called when an atom loses or gains electrons? An ion 4 of 9 What is the charge of an ion if it gains an electron? Negatively charged 5 of 9 What is the charge of an ion if it loses an electron? Positively charged 6 of 9 What is the atomic number of an atom? The number of protons it contains 7 of 9 What is the mass number of an atom? The total of protons and neutrons 8 of 9 What are isotopes? Atoms of the same element with the same number of protons but different number of neutrons 9 of 9
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