Atomic Structure - Atomic Structure Topic 2 2.1 The atom...

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Atomic Structure Topic 2 2.1 The atom 2.1.1 State the position of protons, neutrons and electrons in the atom 2.1.2 State the relative masses and relative charges of protons, neutrons and electrons Relative mass Relative charge Where Proton 1 +1 Nucleus Neutron 1 0 Nucleus Electron 5x10 -4 -1 Energy shell 2.1.3 Define the terms mass number (a), atomic number (Z) and isotopes of an element Isotope: atoms w/same atomic number but different mass number (differ in neutrons) Atomic number: the number of protons Mass number: the average atomic masses of each isotope (m of isotope A x abundance of isotope A )+(m of isotope B x abundance of isotope B) 100 2.1.4 Deduce the symbol for an isotope given its mass number and atomic number A E Z 2.1.5 Calculate the number of protons, neutrons, and electrons in atmos and ions from the mass number, atomic number and charge Protons = atomic number Electrons = atomic number Neutrons = mass number – atomic number 2.1.6 Compare the properties of the isotopes of an element
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Atomic Structure - Atomic Structure Topic 2 2.1 The atom...

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