What does aluminum, germanium, and polonium have in common?

A. They are gases.
B. They have properties of metals and nonmetals.
C. They are all metals.
D. They have the same properties as the noble gases in the last column.

(I think its B.)

I think Aluminum is all metal.

My only question would be Germanium which is considered a "semi-metal being a semiconductor.
However I really think they are all metals.

Well i also learned this so i got the same question from my school and the answer was they are all metals. Its 100% right

To determine the answer, we need to look at the properties of aluminum, germanium, and polonium.

Aluminum is a metal. It is a good conductor of electricity and heat, and it has a shiny appearance.

Germanium is a metalloid. It has properties of both metals and nonmetals. It is a semiconductor, meaning it can conduct electricity under certain conditions.

Polonium is a metal. It is a radioactive element and is extremely rare in nature.

Based on this information, we can conclude that option B is correct. Aluminum, germanium, and polonium have properties of both metals and nonmetals, making them metalloids.