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9 Cards in this Set

  • Front
  • Back
know the periodic trend for atomic size
increases down a group, decreases across a period
know the periodic trend for ionization energy
decreases down group, increases across period
know the periodic trend for ionic size
increases down group, decreases across a period until the nonmetallic ions
know the periodic trend for electronegativity
decreases down group, increases across period
know the periodic trend for shielding
increases down group, constant across a period
the energy needed to remove an electron from a gaseous atom
ionization energy
explain why cations are smaller than the neatral atom from which they come
cations are smaller and cause increased nuclear attraction as remaining electrons are pulled in; an energy level is usually lost
explain why anions are larger than the neutral atom from which they come from
anions are larger
atoms react by gaining or losing electrons; to obtain the most stable electron configuration usually eight electrons are in the outermost energy level
octet rule