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Interpretation:
Four ions must be listed which have same number of electrons as present in Ar.
Concept introduction:
Noble gases have very stable electronic configuration with complete octets. Some of the noble gases are He, Ne, Ar, Kr, Xe and Rn.
Argon is an inert gas with 18 electrons.
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Answer to Problem 9E
Four ions with same number of electrons as present in Ar are K + , Ca + 2, S2 - and P3-.
Explanation of Solution
The
Thus, the required ions are K + , Ca + 2, S2 - and P3 - which have same (18) electrons as present in Ar.
Chapter U1 Solutions
Living By Chemistry: First Edition Textbook
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