The spontaneous decay of an atom is called transmutation
D. Metals
Elements that are shiny, solid, conducts electricity, has atomic mass of 108 is metal.
Chromatography separates things according to their weight.
Nitrogen, for example, is a gas that liquefies at about −200° C and freezes around −210° C, whereas bismuth is a solid melting at 271° C and boiling at about 1,560° C.
