Carbon and its Compound — Flashcards

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Allotropy is the phenomenon due to which an element exists in two or more forms in the same physical state with identical chemical properties but different physical properties. Example: carbon exists …

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Carbon has symbol C, atomic number 6, mass number 12, and valency 4.

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Carbon is the very basis of life because all living things contain carbon. It is also the third most important element for life on earth, after oxygen and hydrogen.

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Catenation is the property of carbon atoms to link with one another and form long chains, branched chains, or ring compounds. This helps carbon form many compounds.

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The crystalline allotropes of carbon are graphite, diamond, and fullerene. They have different structures and different physical properties.

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Graphite is a natural crystalline form of carbon. Each carbon atom is linked to three neighbours in hexagonal layers. The layers are held by weak forces, so they can slide over one another. Graphite i…

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In graphite, one valence electron of each carbon atom remains free. These free electrons help graphite conduct electricity well.

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Diamond is a giant molecule in which each carbon atom is linked with four neighbouring carbon atoms in a rigid tetrahedral structure. This strong bonding makes diamond very hard. Diamond does not cond…