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  • Elements in the same group have similar ______.

    chemical properties
    All the answers are correct
    atomic numbers
    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.'
    '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.'
    none of the answers are correct
  • As you move from top to bottom down the periodic table _______.

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

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

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

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