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Alkaline Earth Metals quiz

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Terms in this set (15)

  • Why are alkaline earth metals called 'alkaline'?
    They are called 'alkaline' because they help to make basic solutions.
  • What does the 'earth' in alkaline earth metals refer to?
    It refers to their ability to remain solids at high temperatures.
  • Which group on the periodic table contains the alkaline earth metals?
    Alkaline earth metals are found in group 2A of the periodic table.
  • List all the alkaline earth metals.
    The alkaline earth metals are beryllium, magnesium, calcium, strontium, barium, and radium.
  • Which alkaline earth metal is radioactive?
    Radium is the alkaline earth metal that is radioactive.
  • How does beryllium's bonding behavior differ from other alkaline earth metals?
    Beryllium tends to form covalent bonds by sharing electrons, unlike the others which form ionic bonds.
  • Why is beryllium considered uncharacteristic among alkaline earth metals?
    Beryllium is uncharacteristic because it shares electrons like a nonmetal instead of losing them.
  • What is the electron configuration for beryllium?
    Beryllium's electron configuration is 1s2 2s2.
  • How many valence electrons do alkaline earth metals have?
    They have 2 valence electrons in their outer shell.
  • What is effective nuclear charge?
    Effective nuclear charge is the attraction the nucleus has for the electrons.
  • Why do alkaline earth metals have higher melting points than group 1A metals?
    They have higher melting points due to stronger metallic bonding from a greater effective nuclear charge.
  • What type of bonds do most alkaline earth metals form with nonmetals?
    Most alkaline earth metals form ionic bonds with nonmetals.
  • Give an example of an ionic compound formed by an alkaline earth metal.
    Magnesium chloride (MgCl2) is an example, formed by magnesium and chlorine.
  • Why is it harder to remove an electron from an alkaline earth metal compared to a group 1A metal?
    The stronger effective nuclear charge in group 2A makes it harder to remove an electron.
  • Why doesn't beryllium achieve the octet rule when bonding?
    Beryllium does not achieve the octet rule because it comes before carbon on the periodic table and only shares its two valence electrons.