Which general trend is demonstrated by the Group 17 elements as they are considered in order from top to bottom on the Periodic Table?
(1) a decrease in atomic radius
(2) a decrease in electronegativity
(3) an increase in first ionization energy
(4) an increase in nonmetallic behavior
(2) a decrease in electronegativity can be noted while traveling down the periodic table, especially since Fluorine exists in Group 17 with the highest electronegativity of 4.0. The rest are all the opposite as you travel down the periodic table in general.
Reference Table S shows a decrease in electronegativity as the Group 17 elements are considered from top to bottom on the Periodic Table of the Elements.
