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Isoelectronic
Posted: Sat Nov 11, 2017 1:48 pm
by Hellen Truong 2J
Are Be2+ and Li+ considered isoelectronic to F-?
Re: Isoelectronic
Posted: Sat Nov 11, 2017 2:02 pm
by Nisarg Shah 1C
No. F- gains 1 more valence electron and would have a complete octet, making it isoelectronic to the next noble gas (Ne). Be2+ and Li+ are isoelectronic to He, because they lose their 2s electrons.
Re: Isoelectronic
Posted: Sat Nov 11, 2017 2:30 pm
by Kevin Ru 1D
Remember that atoms or ions are considered isoelectronic only when they have both the same number of valence electrons and the same electronic structure. Hope that helps!
Re: Isoelectronic [ENDORSED]
Posted: Sat Nov 11, 2017 3:44 pm
by Michelle Lu 1F
No, Be2+ and Li+ would actually be isoelectronic to He since Be would be losing 2 and Li would be losing 1 electron. In order to be isoelectronic, Be2+, Li+, and Ne would have to have the same number of electrons. For example, Na+ and Mg2+ would be isoelectronic to Ne.
Re: Isoelectronic
Posted: Sun Nov 12, 2017 4:35 pm
by Wayland Leung
Are elements isoelectronic if they have the same number of valence electrons but different structure?