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| 1. |
Difference between non metal and metalloid. |
| Answer» Non metal\tThey occupy the right hand side of the Periodic Table.\tMost non-metals are brittle and are not malleable or ductile.\tAt room temperature, they are usually solids or gases.\tThey usually have low boiling and melting points (except carbon and boron).\tThey are poor conductors of heat and electricity.\tThey are usually less dense when compared to metals.\tThey tend to gain electrons during chemical reactions.Metalloid\tMetalloids exhibit some properties of metals as well as of non-metals. Hence, they are also known as semi-metals.\tBoron, silicon, germanium, arsenic, antimony, and tellurium are the most commonly recognized metalloids.\tThese elements run diagonally across the Periodic Table.\tThey may have a metallic or dull appearance.\tThey are usually brittle and are fair conductors of electricity.\tThey may gain or lose electrons during chemical reactions.\tThey form alloys with metals.\tThey are used as catalysts, biological agents, flame retardants, alloys and semiconductors in industries due to their unique properties | |