Question
Refer to the periodic table and predict which of the following ions are isoelectronic with the noble gas argon:(a) $\mathrm{Al}^{3+}$(b) $\mathrm{Ca}^{2+}$(c) $S^{2-}$(d) $\mathrm{N}^{3-}$
Step 1
From the periodic table, we can see that Argon (Ar) has an atomic number of 18, which means it has 18 electrons. Now, let's analyze each ion: (a) Al³⁺: Aluminum (Al) has an atomic number of 13. Since it has a 3+ charge, it loses 3 electrons, leaving it with 10 Show more…
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