Element Q is an element that has a metallic shininess, has good heat conductivity, and is very brittle. To which of the following categories does Element Q most likely belong? O A. compounds B. metalloids C. metals D. nonmetals

C. metals

Explanation:

Elements in the periodic table are grouped into metal and non-metals depending on their characteristics. Metals usually possess the following characteristics:

- High melting and boiling point

- Brittle i.e. ability to break

- lustre i.e. ability to shine when polished.

- Good conductor of heat and electricity

Based on this above characteristics, element Q in this question is a METAL because it posseses the same qualities that a metal does.

d. sodium chloride ions.

not sure if this what   you'r looking for would be percent composition