The Noble Gases because all of their shells are full; thus, they have no charge. If they have no charge, then we cannot form ionic bonds with them.
They are both good conductors if both heat and electricity due to the sea of delocalized electrons that is floating around without getting bonded to an atom.
Such electrons can flow around freely to conduct heat and electricity.
Answer:
It does not represent a physical change
When one end of a short metal bar is heated the opposite end will eventually become hot due to the process of conduction. The correct option in regards to the given question is option "A". Conduction is actually the process in which the heated and the faster molecules collide with the older molecules to transfer the heat from the hot end to the cold end. By the method of conduction, the heat gets transferred to the colder end without being directly in contact with a heating devise.