Answer the following questions-
1)What are atoms?
2) What are molecules?
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Answer the following questions-
1)What are atoms?
2) What are molecules?
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Two or more than two atom after combining makes a molecoule
Hardness is a measure of the resistance to localized plastic deformation induced by either mechanical indentation or abrasion. Some materials (e.g. metals) are harder than others (e.g. plastics, wood).
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