Question

using the periodic table from the pre - reading (), pick the group number that corresponds to each of the following: note - on some periodic tables, groups 13 - 18 are listed as group 3 - 8 (or 3a - 8a). li choose choose group 1 group 2 mg br group 13 (or 3) group 17 (or 7) group 18 (or 8) kr choose b choose

Explanation:

Lithium (Li) is in Group 1 of the periodic table. Magnesium (Mg) is in Group 2. Bromine (Br) is in Group 17 (or 7 in some notations). Krypton (Kr) is in Group 18 (or 8 in some notations). Boron (B) is in Group 13 (or 3 in some notations).

Answer:

Li: Group 1
Mg: Group 2
Br: Group 17 (or 7)
Kr: Group 18 (or 8)
B: Group 13 (or 3)