Neco 2023 Chemistry Question 23

Practice objective / multiple choice question 23 from the 2023 Neco Chemistry examination.

Neco 2023 Chemistry Objective / Multiple Choice Easy Difficulty

Question 23 NECO • 2023 • CHEMISTRY • objective

An element has atomic number 29 and an electron configuration \([ \mathrm{Ar} ]\,3d^{10}\,4s^{1}\). Identify the element, give its chemical symbol, and state two of its common oxidation states.

A. Zinc, Zn, +1 and +2

B. Nickel, Ni, +2 and +3

Correct Answer C. Copper, Cu, +1 and +2

D. Copper, Cu, +2 and +3

Correct Answer

Correct Option:

Copper, Cu, +1 and +2

This is Neco 2023 Chemistry Question 23. It is one of the objective questions from the 2023 Neco Chemistry examination.

Difficulty level: Easy .

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