incomplete octet

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Jada Brown 2H
Posts: 91
Joined: Sat Aug 17, 2019 12:15 am

incomplete octet

Postby Jada Brown 2H » Sun Nov 10, 2019 8:55 pm

how do we know when an element can have an incomplete octet with less than 8 electrons in its lewis structure?

Kaylee Sepulveda 4G
Posts: 85
Joined: Thu Jul 11, 2019 12:16 am

Re: incomplete octet

Postby Kaylee Sepulveda 4G » Sun Nov 10, 2019 9:16 pm

Usually, the elements that do this are B, Al, Li, and H. B and Al will usually form compounds where they only have six electrons instead of a complete octet.

Maya Gollamudi 1G
Posts: 73
Joined: Thu Jul 25, 2019 12:15 am

Re: incomplete octet

Postby Maya Gollamudi 1G » Sun Nov 10, 2019 9:17 pm

H, Li, and Be all form duplets in Lewis structures to achieve the noble gas configuration of He. B also has an incomplete octet of 6 electrons (like in the compound BF3) because F is unlikely to share more electrons with boron due to its high electronegativity.

alex_4l
Posts: 82
Joined: Thu Sep 26, 2019 12:18 am

Re: incomplete octet

Postby alex_4l » Sun Nov 10, 2019 9:19 pm

You mean like one of the exceptions of a bond with electron deficiency?

Ying Yan 1F
Posts: 87
Joined: Fri Aug 02, 2019 12:16 am

Re: incomplete octet

Postby Ying Yan 1F » Tue Nov 12, 2019 8:55 pm

Kaylee Sepulveda 3C wrote:Usually, the elements that do this are B, Al, Li, and H. B and Al will usually form compounds where they only have six electrons instead of a complete octet.

Why does B and Al exhibit this behaviour (where they don't form a complete octet)?

005321227
Posts: 90
Joined: Sat Sep 07, 2019 12:15 am

Re: incomplete octet

Postby 005321227 » Fri Nov 15, 2019 12:21 am

Incomplete octets can occur when elements do not have enough electrons to complete an octet around each element, even with double or triple bonds.

005321227
Posts: 90
Joined: Sat Sep 07, 2019 12:15 am

Re: incomplete octet

Postby 005321227 » Fri Nov 15, 2019 12:21 am

Incomplete octets can occur when elements do not have enough electrons to complete an octet around each element, even with double or triple bonds.


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