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bond length
Posted: Fri Dec 07, 2018 3:34 pm
by juliefilice 4A
Why is the PF bond in PF3 longer than the NF bond in NF3? This is from homework problem 2.25
Re: bond length
Posted: Fri Dec 07, 2018 5:58 pm
by 305144105
P has one more valence shell than N. This results in a larger atomic radius, a larger covalent radius, and thus, a longer bond length.
Re: bond length
Posted: Fri Dec 07, 2018 10:01 pm
by Joaquin Andrade
Because of the shielding effect - since P is a period down from N it has more electrons and thus the pull of the nucleus is weaker, thereby increasing the covalent radius and thus the bond length.
Re: bond length
Posted: Fri Dec 07, 2018 10:03 pm
by 305117729
P has more shells of electron and less attraction from the nucleus.