Questions 7–10
(A) F
(B) Cl
(C) Br
(D) I
(E) At
4 . The only nonmetal that appears as a liquid in its elemental form under standard
conditions
5 . Forms no compounds or ions in which it has a positive oxidation number
6 . Is the only member of the group that has no stable isotopes
(A) allotropes
(B) amphiprotic
(C) isoelectronic
(D) isomers
(E) isotopes
7 . Refers to two or more species having the same electron configuration
8 . Compounds having identical molecular formulae with the atoms arranged differently
9 . The term that would apply to ^16 O and ^17 O
10 . Would describe the relationship between O 2 (g) and O 3 (g)