Neco Model Questions Vol1 2019 Chemistry Question 20

Practice objective / multiple choice question 20 from the 2019 Neco Model Questions Vol1 Chemistry examination.

Neco Model Questions Vol1 2019 Chemistry Objective / Multiple Choice Easy Difficulty
Question 20 NECO_MODEL_QUESTIONS_VOL1 • 2019 • CHEMISTRY • objective

The element with atomic number 26 is a transition metal. Write its ground‑state electron configuration using the Aufbau principle, and state its period and group number in the modern IUPAC numbering.

Answer Options

Correct Answer A. [Ar] 3d⁶ 4s²; period 4; group 8
B. [Ar] 3d⁶ 4s²; period 5; group 8
C. [Ar] 3d⁵ 4s²; period 4; group 8
D. [Ar] 3d⁶ 4s²; period 4; group 7
Correct Answer
A
Correct Option:
[Ar] 3d⁶ 4s²; period 4; group 8

About This Question

This is Neco Model Questions Vol1 2019 Chemistry Question 20. It is one of the objective questions from the 2019 Neco Model Questions Vol1 Chemistry examination.

Difficulty level: Easy .

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