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Explain why quantum numbers stop following the expected trend for elements at potassium, while they do...

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Chemistry

Explain why quantum numbers stop following the expected trendfor elements at potassium, while they do follow the expected trendfor ions.

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4.2 Ratings (541 Votes)
Potassium is an alkali earth metal with electronic configurationas 1s2 2s2 2p6 3s23p6 4s1 and atomic number 19Quantum numbers stop following the trend for electronicconfiguration while filling electrons in orbitals The first twoelectrons are filled    See Answer
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