Metals react differently. Some are very reactive and others are unreactive. Observations of reactions can be used to put metals into an order of reactivity. For example, copper is unreactive so it can ...

There are 118 elements known at present. There are similarities as well as differences are the properties of these elements on the basis of their, all the element can be divided three types: Metal; ...

Since the discovery of gold an estimated 5,000 years ago, metals have played an integral part in the lives of human beings. We all know, almost instinctively, what consitutes a metal and what doesn't, ...

Metals are good conductor of heat and electricity; they are hard, fusible, ductile etc. About 91 elements in the periodic table out of 118 are metals rest are non-metals and metalloids. Metals are ...