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  • Elements in the same group have similar ______.

    chemical properties
    atomic numbers
    All the answers are correct
    atomic masses
  • The primary difference between the modern periodic table and Mendeleev's periodic table is _________.

    'The elements in the modern table are arranged in order of increasing atomic number.'
    none of the answers are correct
    'The two tables are the same except we know about more elements now'
    'The elements in the modern table are arranged in order of increasing atomic weight.'
  • As you move from top to bottom down the periodic table _______.

    electonegativity increases
    electronegativity decreases
    ionizaton energy decreases
    ionization energy increases
  • Elements in the modern periodic table are arranged on the basis of their ______.

    their increasing atomic mass.
    ionization energy.
    their increasing atomic number.
    their increasing atomic weight.
  • The least reactive elements of the periodic table are ______.

    alkali metals
    alkaline metals
    transition metals
    nobel gases
  • Which statement applies to the halogens?

    The halogens have low electron aafinity values
    The halogens have high electron affinity values.
    both a and b
    none of above
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