Some physical properties that metals have in common are that they have luster, good thermal and electrical conductivity, high densities and melting points and are malleable. With the exception of mercury, most metals also are solid at room temperature.
All the nonmetals contains same high ionization energy.
High ionization energies.
High electronegativities.
Poor warm conductors.
Poor electrical conveyors.
Weak solids—not flexible or bendable.
Practically zero metallic shine.
Gain electrons effectively.
Dull, not metallic-glossy, in spite of the fact that they might be colorfu
all these properties are found common in non metals
