by alex
Understanding electron configurations is crucial for mastering chemistry, as it explains how electrons are distributed in an atom’s orbitals. This quiz will test your grasp of these configurations, from simple hydrogen atoms to more complex elements. Sharpen your pencils and get ready to dive into the world of atomic structure!
Electron Configuration Quiz Questions Overview
1. What is the electron configuration of a hydrogen atom?
1s1
2s1
1p1
2p1
2. Which of the following elements has the electron configuration [He] 2s2 2p3?
Nitrogen
Oxygen
Fluorine
Neon
3. What is the electron configuration for a sodium ion (Na+)?
1s2 2s2 2p6
1s2 2s2 2p6 3s1
1s2 2s2 2p5
1s2 2s2 2p6 3s2
4. Which orbital is filled after the 3p orbital?
3d
4s
4p
3s
5. What is the electron configuration of chlorine (Cl)?
[Ne] 3s2 3p5
[Ar] 4s2 3d5
[Ne] 3s2 3p4
[He] 2s2 2p5
6. Which of the following elements has the electron configuration [Ar] 4s2 3d10 4p5?
Bromine
Krypton
Selenium
Arsenic
7. What is the electron configuration for a calcium ion (Ca2+)?
1s2 2s2 2p6 3s2 3p6
1s2 2s2 2p6 3s2 3p6 4s2
1s2 2s2 2p6 3s2 3p4
1s2 2s2 2p6 3s2 3p6 3d2
8. Which of the following elements has the electron configuration [Kr] 5s2 4d10 5p2?
Tin
Antimony
Tellurium
Iodine
9. What is the electron configuration of an oxygen atom?
1s2 2s2 2p4
1s2 2s2 2p6
1s2 2s2 2p3
1s2 2s2 2p5
10. Which of the following elements has the electron configuration [Xe] 6s2 4f14 5d10 6p2?
Lead
Bismuth
Polonium
Radon
