Argon (Ar) is an element in group 18. Argon is

Question

ragingsquirrel · Answer

a gas
highly reactive
a metalloid
a good conductor of heat

jfraser · Answer

Get yourself a good periodic table and learn the properties of groups 1 and 2, and groups 17 and 18. The atoms in group 18 are collectively referred to as the "Noble Gases".

anonymous · Answer

a good conductor of heat.
a metalloid

anonymous · Answer

since its a noble gas it is very unreactive.

espex · Answer

Argon is a gas, it is not reactive, nor a metalloid, nor is it a good conductor of heat.

anonymous · Answer

an inert gas....very unreactive because it has completely filled orbitals:)

anonymous · Answer

it will be a gas definately 
but it lies in 18th group and is a noble gas so it will be unreactive
its not a mettloid as mettloids are the elements which are intermediate b/w metals and non metals and they are non metals
and at last good conductors of heat so its not possible because non metals are not the good conductors of heat...........