According to the kinetic energy, the atoms of the metal will become very energetic and will tend to vibrate more within their lattice structure.
As the atom becomes more energetic the atoms become more and more energetic tending to wriggle free from the crystalline metallic structure making the metal more malleable.
With the addition of more energy, the atoms of the metal will become more energetic than the inter atomic metallic bond and the metal starts to melt into liquid metal.
Yes because a homogeneous mixture is a mixture that has the same uniform appearance and composition throughout while with heterogeneous you can see the different parts of the mixture and pick them out
