Topic
Electron Configuration
3 questions tagged Electron Configuration — spanning every one of the seven Ws.
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How many valence electrons do noble gases usually have?
Noble gases usually have 8 valence electrons, except helium, which has 2. That full outer shell is why they are so unreactive.
ChemistryElectron Configuration
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How many electrons does sodium need to become stable?
Sodium typically loses 1 electron to become stable. That is why it so readily forms a positive ion, Na+.
ChemistryElectron Configuration
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How many electrons does chlorine need to become stable?
Chlorine needs 1 more electron to fill its outer shell. That is why it often forms the chloride ion, Cl−.
ChemistryElectron Configuration