Answer: D.They all have thermal and electrical conductivity
Explanation:
Physical property is defined as the property which can be measured and whose value describes the state of physical system. For Example: State, density etc.
Properties shown by metals:
They are hard.
They are solid at room temperature.
They show lustrous property.
They are ductile and malleable.
They are conducting due to the presence of free electrons.
Iron is magnetic, copper and mercury are not. All the metals have their characteristic colors. They have their characteristic melting points.
Thus the physical property of metals which all the given metals share is they all have thermal and electrical conductivity.
