Neco Model Questions Vol1 2024 Chemistry Question 28

Practice objective / multiple choice question 28 from the 2024 Neco Model Questions Vol1 Chemistry examination.

Neco Model Questions Vol1 2024 Chemistry Objective / Multiple Choice Easy Difficulty

Question 28 NECO_MODEL_QUESTIONS_VOL1 • 2024 • CHEMISTRY • objective

Write the ground‑state electron configuration of the element with atomic number 31. State also the period and the group (using the IUPAC numbering) to which this element belongs.

Answer Options

A. [Ar] 3d^{10} 4s^{2} 4p^{2}; period 4, group 14

B. [Ar] 3d^{10} 4s^{2} 4p^{1}; period 5, group 13

C. [Ar] 3d^{9} 4s^{2} 4p^{1}; period 4, group 13

Correct Answer D. [Ar] 3d^{10} 4s^{2} 4p^{1}; period 4, group 13

Correct Answer

Correct Option:

[Ar] 3d^{10} 4s^{2} 4p^{1}; period 4, group 13

About This Question

This is Neco Model Questions Vol1 2024 Chemistry Question 28. It is one of the objective questions from the 2024 Neco Model Questions Vol1 Chemistry examination.

Difficulty level: Easy .

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