Helium

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Jose Munoz 1D
Posts: 22
Joined: Tue Nov 14, 2017 3:00 am

Helium

Postby Jose Munoz 1D » Sun May 13, 2018 8:19 pm

Does helium follow the electronegative trend of the periodic table or is it an exception to rule becuase of how the table of elements is set up?

Jimmy lira-1G
Posts: 61
Joined: Fri Apr 06, 2018 11:03 am

Re: Helium

Postby Jimmy lira-1G » Sun May 13, 2018 8:20 pm

I just answered this previously check this out

abetterchemtext.com/Periodicity/exceptions.htm

"This is the easiest of the exceptions. We have said that electronegativity increases to the right. This is true except that the trend does NOT include the noble gases. That means that fluorine has the highest electronegativity, not Ne or He. This is because the definition of electronegativity contains the phrases "in a covalent bond." Since the noble gases don't bond, they don't have electronegativities."

-Jimmy Lira 1G

Caroline Crotty 1D
Posts: 32
Joined: Fri Apr 06, 2018 11:02 am

Re: Helium

Postby Caroline Crotty 1D » Sun May 13, 2018 9:06 pm

The noble gases do not get included in electronegativity due to the fact that they have 8 electrons already and do not need/want to attract any more. This means they wouldn't have an electronegativity by definition.


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