which of the following ions does not have the configuration of argon?

a- Cl^-

b- K+

c- Ca²⁺

D- I-

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Question

which of the following ions does not have the configuration of
argon?
a- Cl-
b- K+
c- Ca2+
D- I-

Priyanka Madhu · Accepted Answer

The correct answer is (D) Argon has 18 electrons while
I- (iodide ion) has 54 electrons

which of the following ions does not have the configuration of argon? a- Cl- b- K+ c- Ca2+ D- I-