Valence Electrons
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Valence Electrons
Valence electrons are the electrons in the outermost shell of an atom, and atoms are more stable when they have a full valence shell. Is this number of electrons always 8? For example, Fl has 7 valence electrons, so it forms the ion Fl- to have 8 valence electrons to be like a noble gas. Is a full valence shell always 8?
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Re: Valence Electrons
It is a good rule-of-thumb to assume most atoms of the p-block elements want a full octet, or eight electrons in their valence shell. There are exceptions to this eight electron rule, including hydrogen, which tends have 2 electrons in its valence shell once full.
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Re: Valence Electrons
And the 8 electrons come from the full s and p orbitals and not the d orbitals (2 +6 = 8)?
Re: Valence Electrons
Yes, valence electrons are only found in the s and p orbitals. So 2 electrons in the s orbital and 6 in the p orbital add up to the 8 valence electrons that are found in the elements.
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