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[He] 2s2 3p5 is the electronic configuration of a neutral Fluorine atom.It's -1 ion (F-, fluoride ion), however is: [He] 2s2 3p6, or [Ne]
1s^22s^22p^6
Because it has an extra electron
Sodium fluoride has electron and ionic elements. This is taught in science.
The electron configuration of thaliium III ion is [XE] 4f14 5d10.
[He] 2s2 2p6
1s2 2s2 2p6 is the electron configuration of the fluoride ion. It has a complete octet and is isoelectronic with neon. Before it becomes an ion, it is 1s2 2s2 2p5 Then it gains an electron and has a negative charge.
[He] 2s2 3p5 is the electronic configuration of a neutral Fluorine atom.It's -1 ion (F-, fluoride ion), however is: [He] 2s2 3p6, or [Ne]
The Fluoride ion, neon atom, and sodium ion all have the same electron configuration and known as ISO-ELECTRONIC ions.
1s^22s^22p^6
Fluorine's electron configuration is 1s2 2s2 2p5, and since fluoride is just fluorine with an extra electron, or F-1, its electron configuration is 1s2 2s2 2p6.
The electron configuration of selenium for a 2- ion is [Kr]4s2.3d10.4p6.
fluoride
Because it has an extra electron
Neon has the same electron configuration as the Fluoride ion however a spectrum of these although the same will be shifted in wave-length due to the additional charge on the Neon atoms nucelus.
Sodium fluoride has electron and ionic elements. This is taught in science.
[He] 2s2 3p5 is the electronic configuration of a neutral Fluorine atom. It's -1 ion (F-, fluoride ion), however is: [He] 2s2 3p6, or [Ne].