2B3d

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JChen_2I
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Joined: Fri Aug 09, 2019 12:17 am

2B3d

Postby JChen_2I » Sat Oct 26, 2019 10:07 pm

How do we know that bromine gets 10 valence electrons?

ckilkeary 2G
Posts: 68
Joined: Fri Aug 09, 2019 12:16 am

Re: 2B3d

Postby ckilkeary 2G » Sat Oct 26, 2019 10:22 pm

How do we know that bromine gets 10 valence electrons?

Bromine actually only has 7 valence electrons. An easy way to tell this is because Bromine is one column to the left of the noble gases that all have a complete set of 8 electrons on their outer shell. Sharing with the three Fluorine atoms lets the Bromine share 6 electrons with Fluorine's and have 4 of its own unshared electrons.


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