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Covalent Bonding in H2, N2 and O2

When a carbon...

Question

When a carbon atom shares its valence electrons with other atoms, it attains its nearest noble gas configuration, which is of _______.

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Solution

Carbon has four valence electrons. It forms four covalent bonds by sharing its valence electrons and attains the nearest noble gas configuration. The nearest noble gas configuration for carbon is neon which has 8 valence electrons.

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Q. Assertion :Carbon shows tetravalency in all carbon compounds. Reason: Carbon shares its four valence electrons with other atoms and forms four single covalent bonds to get the nearest noble gas configuration.

Q. Assertion (A): An oxygen atom shares 2 electrons with 2 hydrogen atoms to form a water molecule.
Reason (R): Oxygen and hydrogen atoms need 2 and 1 electron respectively to attain the nearest noble gas configuration.

Assertion (A): Carbon has a strong tendency to either lose or gain electrons to attain noble gas configuration.

Reason (R): Carbon has four electrons in its outermost shell and has the tendency to share electrons with carbon or other elements.

Q. Carbon forms four covalent bonds by sharing its four valence electrons with univalent atoms, e.g., hydrogen. After the formation of four bonds, carbon attains the electronic configuration of :

Q. Statement 1: A

{Br}_{2}

molecule attains the noble gas configuration by sharing of electrons between the two Br atoms.
Statement 2: The shared electrons belong to the outermost shells of both atoms.

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Covalent Bonding in H2, N2 and O2

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