The Non Metal


Metals And Non Metals - Concepts
Class - RRB Technician Grade III Subjects
 
 
Concept Explanation
 

The Non Metal

The Non-Metals:  All the elements can be divided broadly into metals and non-metals. There are only 22 non-metallic elements, out of which ii are gases (e.g, oxygen, nitrogen and chlorine), one la liquid (bromine) and remaining 10 are solids (c.g. carbon, sulphur, phosphorous and iodine).Non-metals are generally bad conductors of heat and electricity, Unlike metals, non-metals have no free electrons. Only graphite, an allotropic form of carbon, is an exception and is a good conductor of electricity. Though the non-metals are small in number, they are the major constituents of air, ocean and earth .

 
 
 


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