if we make a mixture of a metal,non-metal and a metalloid in equal quantities, then which chemical and physical properties will it show?
In such a mixture the properties of individual elements will not be altered.
Write any four metals and non metals. Write it's physical properties, chemical properties and its uses
(a) State any three differences between the physical properties of metal and non-metals. (b) Differentiate between metals and non-metals on the basis of their chemical properties. (c) State three reasons (of which at least one must be chemical) for believing that sodium is a metal. (d) State three reasons (of which at least one must be chemical) for believing that sulphur is a non - metal. (e) Which non-metal has been placed in the reactivity series of metal?
The three elements having chemical symbols of Si, B and Ge are :
(a) all metals (b) all non-metals
(c) all metalloids (d) Si is metalloid, B is metal and Ge is non-metal