Question

why ?metals are hard but non metals are soft . give reason​

Answer 1

Answer:

The solid non-metals are brittle or dull and soft as they can be broken down into a powdery substance or mass on tapping down with the hammer. ... Non-metals are poor conductors of heat and electricity except Graphite. They do not possess metallic luster. Non-metals are not sonorous, they do not produce a ringing sound.

More,,,,,

Metal have lots of free electrons which create a huge electron pressure (on the order of 100,000 atm), so to crush them,pressures higher than their internal electron gas pressure is required; this is why they are hard.if

Explanation:

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Answer 2

Metal have lots of free electrons which create a huge electron pressure (on the order of 100,000 atm), so to crush them,pressures higher than their internal electron gas pressure is required; this is why they are hard.

Non-metals are not hard rather they are generally soft. ... Conduction: Non-metals are bad conductor of heat and electricity. Graphite which is allotrope of carbon is good conductor of electricity, and is an exception