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marta [7]
3 years ago
13

Which statement(s) is/are indicative of a covalent bond?

Biology
1 answer:
saveliy_v [14]3 years ago
8 0

Answer:

<u>The statements which are indicative of a covalent bond are as follows -:</u>

  • Electron movement is concentrated somewhere between the two bonded nuclei.
  • The greatest probability of finding the shared electrons is in the area of orbital overlap.
  • The valence electrons involved in the bond are moving solely around the nucleus of the atom with the higher electron affinity.

Explanation:

Among the given four statements, three statements are correct, the statement- "Electron density is focused on one element in the bond, generally resulting in the formation of a crystalline substance." is incorrect as In ionic bonds, crystalline formation takes place.

  • <u>Somewhere between the two bonded nuclei, electron movement is centered. --:</u> Covalent bonds are a class of chemical bonds in which valence electrons are shared between two atoms, typically two non-metals. The formation of a covalent bond helps the non-metals to obey the octet 's law and thus become more stable.
  • <u>The greatest probability of finding the shared electrons is in the area of orbital overlap.-</u>: A pi bond (π bond) is a type of covalent bond arising from the overlap of two p orbitals side by side.
  • <u>The valence electrons involved in the bond are moving solely around the nucleus of the atom with the higher electron affinity.- : </u>As pairs of electrons are exchanged by atoms, covalent bonding happens. In order to achieve further stability, which is gained by forming a complete electron shell, atoms can covalently bond with other atoms. Atoms can fill their outer electron shell and achieve stability by exchanging their outermost (valence) electrons.
  • Hence ,<u> the correct option is D (I,II and IV )</u>
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