EDEXCEL C2 Atomic Structure and Periodic table

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HLHSscience
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219575
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EDEXCEL C2 Atomic Structure and Periodic table
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2013-05-14 12:07:44
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EDEXCEL C2 Atomic Structure Periodic table
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EDEXCEL C2 Atomic Structure and Periodic table
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  1. Explain where protons,neutrons and electrons are found in an atom
    Electrons are found in shells (energy levels) around the nucleus. Protons and neutrons are found in the nucleus.
  2. What is the charge and relative mass of a proton
    Protons have a charge of +1 and a relative mass of 1
  3. What is the charge and relative mass of a neutron
    Protons are neutral (don't have a charge) and have a relative mass of 1
  4. What is the charge and relative mass of an electron?
    The charge is -1 and the relative mass is negligible
  5. How many electrons can fit in each of the first three electron shells?
    • 1st shell = 2 electrons
    • 2nd shell = 8 electrons
    • 3rd shell = 8 elctrons
  6. What is the definition of an element?
    An element is a substance that contains one type of atom
  7. Phosphorous have 15 electrons what is it's electronic structure?
    2.8.5
  8. Why are group 8 elements unreactive
    They have a full outer shell of electrons theyfore don't need to react further
  9. What is and ion?
    An ion is an atom that has gained or lost one or more electrons and therefore has a charge.
  10. What is the charge on an atom that has lost 2 electrons to become an ion
    +2
  11. What states of matter are represented by (s), (l), (g) and (aq)?
    • (s) - solid
    • (l) - liquid
    • (g) - gas
    • (aq) - aqueous/dissolved in water
  12. What is a group in the periodic table
    It is vertical column of elements
  13. What is a period on the periodic table?
    A period is a row of elements (same shell)
  14. What is the mass number?
    It is the number of protons and neutrons
  15. What is the atomic number?
    It is the number of protons
  16. Where are metals found on the periodic table
    Left hand side

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