6. What holds electrons in a covalent bond?
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a) It is the fact that two electrons are paired in the same orbital. b) The electron sharing that occurs makes the atoms involved smaller and more compact. c) An increase in potential energy, caused by electrical repulsion of the electrons in the bond, holds the electrons. d) The negative charges on the electrons are attracted by the positive charges on both nuclei
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Answer:
It is d) - the electrons are attracted by the charges on both nuclei, and therefore pair up in molecular orbitals which are distributed around both nuclei. These molecular orbitals will normally be slightly smaller than the aggregate of the atomic orbitals from which the bond was formed. The electrons will be paired (because they must be) and they will repel each other, but these are not what holds them in the bond.
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in covalent bonding , 1.sharing of electron 2.total decrease in the potential energy of system 3. a good overlap of orbital is required so these all thing brings paired the electron close to both the nuclei so thats why co-valent bonds are directional
It is d) - the electrons are attracted by the charges on both nuclei, and therefore pair up in molecular orbitals which are distributed around both nuclei. These molecular orbitals will normally be slightly smaller than the aggregate of the atomic orbitals from which the bond was formed. The electrons will be paired (because they must be) and they will repel each other, but these are not what holds them in the bond.
answer it's D
in covalent bonding , 1.sharing of electron 2.total decrease in the potential energy of system 3. a good overlap of orbital is required so these all thing brings paired the electron close to both the nuclei so thats why co-valent bonds are directional
llsanjeev_raja
see Ladar Bamrungnak
Jeff
answer it's D
Giancarlo S
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