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

3. Ionic Compounds

Periodic Trend: Ionization Energy (Simplified)

GOB Chemistry

3. Ionic Compounds

Periodic Trend: Ionization Energy (Simplified)

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Multiple Choice

Which of the following elements would lose an electron the easiest?

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Identify the periodic table group for each element: Ar (argon) is a noble gas, Li (lithium) is an alkali metal, Zn (zinc) is a transition metal, Br (bromine) is a halogen, and B (boron) is a metalloid.

Recall that elements in Group 1, the alkali metals, have a single electron in their outermost shell, which they lose easily to achieve a stable noble gas electron configuration.

Consider the electron configurations: Li has the configuration 1s² 2s¹, meaning it has one electron in its outermost shell, making it highly reactive and eager to lose that electron.

Compare the reactivity of the elements: Noble gases like Ar are very stable and do not lose electrons easily. Transition metals like Zn can lose electrons but not as readily as alkali metals. Halogens like Br tend to gain electrons rather than lose them. Metalloids like B have more complex behavior but do not lose electrons as easily as alkali metals.

Conclude that Li, being an alkali metal with one electron in its outer shell, will lose an electron the easiest compared to the other elements listed.