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Ch.8 - Periodic Properties of the Elements
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All textbooksTro 4th EditionCh.8 - Periodic Properties of the ElementsProblem 54a

Chapter 8, Problem 54a

Which outer electron configurations would you expect to belong to a noble gas? a. ns2 b. ns2np6 c. ns2np5 d. ns2np2

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Hello everyone today, we are being asked to identify which of these valence electron configurations corresponds to an alkali metal. Recall that Alkali metals are in group one a. And therefore have one valence electron. Furthermore, the exponents in front of each bottle represents how many valence electrons are present. A is the correct answer because we simply have an S. One configuration there, which correlates to the one valence electron present. And with that we have our answer. I hope this helped, and until next time.
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