Table of contents

1. Matter and Measurements4h 31m
2. Atoms and the Periodic Table5h 23m
3. Ionic Compounds2h 18m
4. Molecular Compounds2h 18m
5. Classification & Balancing of Chemical Reactions3h 17m
6. Chemical Reactions & Quantities2h 27m
7. Energy, Rate and Equilibrium3h 46m
8. Gases, Liquids and Solids3h 25m
9. Solutions4h 10m
10. Acids and Bases3h 29m
11. Nuclear Chemistry56m
BONUS: Lab Techniques and Procedures1h 38m
BONUS: Mathematical Operations and Functions47m
12. Introduction to Organic Chemistry1h 34m
13. Alkenes, Alkynes, and Aromatic Compounds2h 12m
14. Compounds with Oxygen or Sulfur1h 6m
15. Aldehydes and Ketones1h 1m
16. Carboxylic Acids and Their Derivatives1h 11m
17. Amines39m
18. Amino Acids and Proteins1h 51m
19. Enzymes1h 37m
20. Carbohydrates1h 41m
21. The Generation of Biochemical Energy2h 8m
22. Carbohydrate Metabolism2h 22m
23. Lipids2h 26m
24. Lipid Metabolism1h 45m
25. Protein and Amino Acid Metabolism1h 37m
26. Nucleic Acids and Protein Synthesis2h 54m

2. Atoms and the Periodic Table

The Electron Configuration (Simplified)

GOB Chemistry

2. Atoms and the Periodic Table

The Electron Configuration (Simplified)

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Multiple Choice

Which electron configuration represents a violation of the Auf Bau Principle?

Four electron configurations illustrating the Auf Bau Principle violations.

Four electron configurations showing a potential violation of the Auf Bau Principle.

Four electron configurations with one violating the Auf Bau Principle.

Four electron configurations depicting a violation of the Auf Bau Principle.

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Verified step by step guidance

The Aufbau Principle states that electrons fill orbitals starting from the lowest energy level to the highest. This means that electrons will fill the 1s orbital before the 2s orbital, the 2s before the 2p, and so on.

Examine each electron configuration image provided. Each box represents an orbital, and the arrows represent electrons with their spins.

In the first image, the electron configuration shows electrons filling the 1s, 2s, and 2p orbitals. Check if the electrons are filling the orbitals in the correct order according to the Aufbau Principle.

In the second image, observe if any electrons are placed in higher energy orbitals before the lower ones are completely filled. This would indicate a violation of the Aufbau Principle.

Compare all the images to identify which one has electrons in higher energy orbitals while lower energy orbitals are not fully occupied. This configuration would be the one that violates the Aufbau Principle.