Question

which of the following is a nonmetal?
gallium
bromine
yttrium
vanadium

Explanation:

Step1: Recall non - metal properties

Non - metals are elements that lack metallic properties.

Step2: Check each element

• Gallium (\(Ga\)): Metal (in Group 13).
• Bromine (\(Br\)): Non - metal (in Group 17, exists as \(Br_2\) liquid non - metal at room temperature).
• Yttrium (\(Y\)): Metal (transition metal).
• Vanadium (\(V\)): Metal (transition metal).

Answer:

Bromine