Question

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

Answer 1

An ion has 18 electrons in the outermost shell, it is. (a) Cu⁺

Answer 2

Answer:

it is cu+..

Explanation:

atomic no. of copper cu is 29..

electronic configuration of copper is 2,8,18,1.

when copper loses one electron then it becomes a positive Ion that is cu+ ..

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