An ion has 18 electrons in the outermost shell, it is

An Ion Has 18 Electrons In The Outermost Shell It Chemistry Question

An ion has 18 electrons in the outermost shell, it is

Options

(a) Cu⁺
(b) Th⁴⁺
(c) Cs⁺
(d) K⁺

Correct Answer:

Cu⁺

Explanation:

Cu⁺ = 29 -1 electrons
Electronic configuration – 1s² 2s² 2p⁶ {3s² 3p⁶ 3d¹⁰}.

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Question Type: Memory (964)
Difficulty Level: Easy (1008)
Topics: Structure of Atom (90)
Subject: Chemistry (2512)

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