Covalent bonds are formed by the __________ of electrons between two atoms so that both can achieve a completely filled outermost shell.

Academic Chemistry NCERT Class 10

Covalent bonds are formed by the sharing of electrons between two atoms so that both can achieve a completely filled outermost shell.

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Updated on: 10-Oct-2022

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How are covalent bonds formed?
(a) Name three elements that have a single electron in their outermost shells.(b) Name two elements that have two electrons in their outermost shells. (c) Name three elements with completely filled outermost shells.
What do we call those particles which are formed :(a) by the gain of electrons by atoms?(b) by the loss of electrons by atoms?
Which element has:(a) two shells, both of which are completely filled with electrons? (b) the electronic configuration 2, 8, 2? (c) a total of three shells, with four electrons in its valence shell? (d) a total of two shells, with three electrons in its valence shell? (e) twice as many electrons in its second shell as its first shell?
The electrons present in the outermost shell are called(a) valency electrons (b) octate electrons(c) duplet electrons (d) valence electron.
Name :(a) three elements that have a single electron in their outermost shells.(b) two elements that have two electrons in their outermost shells.(c) three elements with filled outermost shells.
Carbon forms four covalent bonds by sharing its four valence electrons with four univalent atoms, e.g. hydrogen. After the formation of four bonds, carbon attains the electronic configuration of heliumneonargonkrypton
State the number of electrons present in the outermost shell of the atoms of the following elements :(i) Neon (ii) Chlorine
In the atom of an element X, 6 electrons are present in the outermost shell. If it acquires noble gas configuration by accepting requisite number of electrons, then what would be the charge on the ion so formed?
What is the name of the chemical bond formed:(a) By the sharing of electrons between two atoms?(b) By the transfer of electrons from one atom to another?
Ethane with molecular formula C2H6 has(a) 6 covalent bonds(b) 7 covalent bonds(c) 8 covalent bonds(d) 9 covalent bonds.
Using electron-dot diagrams which show only the outermost shell electrons, show how a molecule of nitrogen, N2, is formed from two nitrogen atoms. What name is given to this type of bonding?
Using electron-dot diagrams which show only the outermost shell electrons, show how a molecule of oxygen, O2, is formed from two oxygen atoms. What is the name given to this type of bonding?
What is the maximum number of electrons which can be accommodated in the :(a) innermost shell of an atom?(b) outermost shell of an atom?
Difference Between Ionic, Covalent and Metallic Bonds

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