The Atom 4.5 / 5 based on 2 ratings ? ChemistryThe Periodic TableASOCR Created by: AniaMarisSUCreated on: 23-03-15 16:01 What relative charge and mass does an electron have? Mass = 1/2000 Charge = -1 1 of 12 What relative charge and mass does a proton have? Mass= 1 Charge = +1 2 of 12 What relative charge and mass does a neutron have? Mass= 1 Charge = 0 3 of 12 How do you work out the number of neutrons? Mass number - atomic number 4 of 12 What must be the same in an atom to have no overall charge? The number of protons and electrons 5 of 12 Do negative ions have more or less electrons More 6 of 12 Why are ions with less electrons positive? As protons are positively charged and there are more protons than electrons 7 of 12 What are isotopes? Isotopes are atoms of the same element with a different number of neutrons 8 of 12 How can you tell if an atom is an isotope? It has a different mass number due to more or less neutrons 9 of 12 What decides the chemical properties of an atom? It's the number and arrangement of electrons that determine the chemical properties of an element 10 of 12 Why do isotopes of an atom have the same chemical properties? They have the same configuration of electrons 11 of 12 What different physical properties might an isotope have? Densities and Rates of diffusion 12 of 12
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