Period: VSEPR Practice Instructions: Define each of the following terms that per

Question

Period: VSEPR Practice Instructions: Define each of the following terms that pertain to chemical bonds; specifically covalent bonds Molecule- Double Bond Triple Bond- Polar Covalent Bond Bond Strength Instructions: Rank the following bonds in order of Instruetions: Rank the following bonds in order of increasing bond strength: Bond Length increasing bond length Double Single Triple Double Single Triple Weakest: Middle: Strongest Weakest Middle Strongest: Sigma and Pi Bonds Single, double and triple bonds are formed when orbitals of different atoms overlap to produce molecular orbitals. When two orbitals overlap sharing one pair of electrons -along the Single Bond internuclear axis, g sigma bond is formed. When two more orbitals overlap- sharing a second pair of electrons-above Double Bond and below the internuclear axis, g pi bond results. If a third pair of orbitals overlap-sharing a third pair or electrons-to the Triple Bond sides of the internuclear axis, a second pi bond is formed. # of signta? # of pi? Electronegativity Values and Polarity Electronezativity indicates the relative ability of an element's atom to attract electrons in a chemical bond.20 The difference between two elements' electronegativity Li Be values determines the type of chemical bond: He n.a. BCNOFNe 0.98 | 1.57 | | 2.04 | 2.55 | 3.04 | 3.44 | 3.98 | n.a. 0.93 1.31 1.61 1.90 2.19 2.58 3.16 n.a

Explanation / Answer

Molecule- when two or more atoms are chemical bonded with each other .

Single bond - when one electron pair is shared between two atoms.

Double bond - when two electrons pairs are shared between two atoms.

Triple bond - when two electrons pairs are shared between two atoms.

Polar covalent bond - when a electron pair is shared unequally between two atoms.

Bond strength -

Single bond<double bond >triple bond

Bond length-

Triple bond < double bond <single bond

Sigma bond pi bond

Single bond 1 0

Double bond 1 1

Triple bond. 1. 2

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