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Group and Period numbers

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  • How many valence electrons are there for Magnesium (Mg)?
    2 ve-
  • Which is MORE reactive Potassium (K) or Calcium (Ca)?
    Potassium (K)
  • TRUE or FALSE. Most of the elements are metals.
    TRUE
  • It has the property of both METAL and NON-METAL.
    Metalloids
  • What is the group or family of Helium (He)?
    Group 8 or Noble Gases
  • What is the highest energy level for Calcium (Ca)?
    4
  • What is the group or family of Chlorine (Cl)?
    Group 7 or halogens
  • What is the highest energy level for Argon (Ar)?
    3
  • TRUE or FALSE. Hydrogen is a METAL.
    False
  • How many valence electrons are there for Fluorine (F)?
    7 ve-
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