Answer:
D. Bromine (Br)
Step-by-step explanation:
Based on its position on the periodic table Bromine is the only non-metal from the given choices of elements.
- Potassium is an alkali-metal and it belongs to group 1 on the periodic table.
- Vanadium and Nickel are transition metals which belongs to the d-block on the periodic table.
- Bromine, Br is a halogen which belongs to group 7 on the periodic table.
- The group is a group of non-metals