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)

Previous problemNext problem

Struggling with GOB Chemistry?

Join thousands of students who trust us to help them ace their exams!Watch the first video

Multiple Choice

Which of the following has the highest ionization energy?

Na⁺

Previous problemNext problem

Verified step by step guidance

Understand the concept of ionization energy: Ionization energy is the energy required to remove an electron from an atom or ion in its gaseous state. Generally, ionization energy increases across a period and decreases down a group in the periodic table.

Consider the position of each element or ion in the periodic table: Ar (argon) and Kr (krypton) are noble gases, Na (sodium) and Na+ (sodium ion) are in Group 1, and Mg (magnesium) is in Group 2.

Recall that noble gases like Ar and Kr have high ionization energies due to their full valence electron shells, making them very stable and less likely to lose an electron.

Compare Na and Na+: Na+ is a cation with one less electron than Na, resulting in a higher effective nuclear charge and a smaller atomic radius, which increases its ionization energy compared to neutral Na.

Evaluate the options: Given the trends in ionization energy and the stability of noble gases, consider which of the listed options would have the highest ionization energy based on their electronic configuration and position in the periodic table.