Atoms that can accept more than 8 Valence E-

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Drew Myers 4G
Posts: 100
Joined: Sat Aug 17, 2019 12:17 am

Atoms that can accept more than 8 Valence E-

Postby Drew Myers 4G » Sun Nov 03, 2019 11:23 am

Why are some atoms able to break the octet rule and accept more than 8 valence electrons?

Sarah Nichols 4C
Posts: 52
Joined: Sat Aug 24, 2019 12:18 am

Re: Atoms that can accept more than 8 Valence E-

Postby Sarah Nichols 4C » Sun Nov 03, 2019 12:00 pm

Atoms in period 3 or higher can accommodate more than 8 electrons because they have d-orbitals in their valence shell. The octet guideline comes from the fact that full s- and p-orbitals accommodate 8 e- together (s2 and p6)

Sydney Pell 2E
Posts: 100
Joined: Wed Sep 11, 2019 12:17 am

Re: Atoms that can accept more than 8 Valence E-

Postby Sydney Pell 2E » Sun Nov 03, 2019 6:14 pm

The hybridization and mixing of orbitals in period 3 or larger atoms are part of the reason why some atoms can have expanded octets. This is because orbitals in the same shell can mix together because they are similar in energy, which means they can have more orbitals available to fill during bonding.

Rosa Munoz 2E
Posts: 105
Joined: Wed Sep 18, 2019 12:21 am

Re: Atoms that can accept more than 8 Valence E-

Postby Rosa Munoz 2E » Sun Nov 03, 2019 9:11 pm

Because they have a d orbital


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