Neco Model Questions Vol1 2018 Chemistry Question 30

Practice objective / multiple choice question 30 from the 2018 Neco Model Questions Vol1 Chemistry examination.

Neco Model Questions Vol1 2018 Chemistry Objective / Multiple Choice Easy Difficulty
Question 30 NECO_MODEL_QUESTIONS_VOL1 • 2018 • CHEMISTRY • objective

Write the ground‑state electron configuration for the element with atomic number 29, and state the type of orbital that receives the last electron added.

Answer Options

A. [Ar] 3d^{9} 4s^{2}; last electron enters a 4s orbital
B. [Ar] 3d^{10} 4s^{2}; last electron enters a 4s orbital
Correct Answer C. [Ar] 3d^{10} 4s^{1}; last electron enters a 4s orbital
D. [Ar] 3d^{9} 4s^{1}; last electron enters a 3d orbital
Correct Answer
C
Correct Option:
[Ar] 3d^{10} 4s^{1}; last electron enters a 4s orbital

About This Question

This is Neco Model Questions Vol1 2018 Chemistry Question 30. It is one of the objective questions from the 2018 Neco Model Questions Vol1 Chemistry examination.

Difficulty level: Easy .

View More Neco Model Questions Vol1 2018 Chemistry Questions More Neco Model Questions Vol1 Practice Questions Back to Questions

Master the Exam!

You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.

Unlock Full Access Available for Android & Windows
Chat with Support