Does H have the highest ionization energy?

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tonyhu
Posts: 57
Joined: Tue Sep 24, 2019 12:17 am

Does H have the highest ionization energy?

Postby tonyhu » Wed Oct 30, 2019 11:25 pm

Since it only has one electron?

DMuth_1J
Posts: 63
Joined: Thu Jul 11, 2019 12:15 am

Re: Does H have the highest ionization energy?

Postby DMuth_1J » Wed Oct 30, 2019 11:27 pm

No, Florine does

Zaynab Hashm 2I
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Re: Does H have the highest ionization energy?

Postby Zaynab Hashm 2I » Wed Oct 30, 2019 11:31 pm

ionization energy increases across a period and decreases down a group, so if you look at the periodic table it is clear that helium is the element that has the highest first ionization energy

AGaeta_2C
Posts: 112
Joined: Wed Sep 18, 2019 12:21 am

Re: Does H have the highest ionization energy?

Postby AGaeta_2C » Sun Nov 03, 2019 8:57 pm

Ionization energy is defined as the energy needed to remove an electron from an atom in the gas phase. Ionization energy increases across a period and decreases down a group. For this reason, He has the highest first ionization energy.

Emil Velasco 1H
Posts: 96
Joined: Wed Nov 21, 2018 12:19 am

Re: Does H have the highest ionization energy?

Postby Emil Velasco 1H » Sun Nov 03, 2019 11:17 pm

Flourine has the highest ionization energy, as it requires the most energy in order to lose an electron.

I believe Noble gases are excluded in this case but I'm not too sure.


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