The Current model of the atom 1.0 / 5 based on 1 rating ? PhysicsAtomic StructureGCSEAQA Created by: MissComfortCreated on: 11-05-17 18:25 The nucleus is... tiny but it makes up most of the mass of the atom 1 of 15 What does the nucleus contain? Protons and neutrons 2 of 15 What is the relative charge of a proton? +1 3 of 15 What is the relative charge of a neutron? 0, the are neutral 4 of 15 What gives the nucleus its overall positive charge? Neutrons 5 of 15 How much smaller is the nucleus than the atom Its radius is about 1 times 10 to the power of minus 10 metres smaller than the atom 6 of 15 What is the relative charge of a electron -1 7 of 15 What do electrons do? They whizz around the outside of nucleus really fast 8 of 15 What gives atoms its overall size? Electrons 9 of 15 What is the size of the radius of an atom? The radius of an atom is about 1 times 10 to the power of minus 10 metres 10 of 15 The number of protons= the number of electrons 11 of 15 Why are the number of protons and electrons equal protons and electrons have an equal but opposite charge and atoms have no overall charge 12 of 15 What happens if electrons gain energy by absorbing EM radiation? They move to a higher energy level, further from the nucleus 13 of 15 What happens if electrons release EM radiation They move to a lower energy level, closer to the nucleus 14 of 15 What happens if one or more OUTER electrons leaves the atom? the atom becomes a positively charged ion 15 of 15
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