1.1 2.0 / 5 based on 1 rating ? ChemistryAtom BasicsASWJEC Created by: cassie97Created on: 03-05-14 22:03 Atomic Number Number of protons or electrons. ( Lower ) 1 of 13 Mass Number Number of protons and neutrons. ( Upper ) 2 of 13 Isotope Two forms of the same element with equal numbers of protons and electrons, but different numbers of neutrons. 3 of 13 Proton mass and charge. Mass = 1 Charge = +1 4 of 13 Electron mass and charge. Mass = 0 Charge = -1 5 of 13 Neutron mass and charge. Mass = 1 Charge = 0 6 of 13 The nature and penetrating power of alpha radiation. Helium Nucleus. Paper. 7 of 13 The nature and penetrating power of beta radiation. High energy electron. 0.5cm Aluminium. 8 of 13 The nature and penetrating power of gamma radiation. Electromagnetic radiation. 2cm+ Lead. 9 of 13 Change in mass, atomic number and position on the periodic table due to alpha emmission. Mass number is 4 less. Atomic number is 2 less. Two places to the left on the periodic table. 10 of 13 Change in mass, atomic number and position on the periodic table due to beta emmission. Mass number is the same. Atomic number is 1 more. One place to the right on the periodic table. 11 of 13 Half Life The time taken for the number of radioactive nuclei in a sample to decrease by half. 12 of 13 Standard Molar Ionisation Energy The energy required to remove one mole of electrons from one mole of gaseous atoms to form one mole of gaseous ions under standard conditions. 13 of 13
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