Table of contents

1. Intro to General Chemistry3h 48m
2. Atoms & Elements4h 16m
3. Chemical Reactions4h 10m
4. BONUS: Lab Techniques and Procedures1h 38m
5. BONUS: Mathematical Operations and Functions48m
6. Chemical Quantities & Aqueous Reactions3h 53m
7. Gases3h 49m
8. Thermochemistry2h 37m
9. Quantum Mechanics2h 58m
10. Periodic Properties of the Elements3h 9m
11. Bonding & Molecular Structure3h 29m
12. Molecular Shapes & Valence Bond Theory1h 57m
13. Liquids, Solids & Intermolecular Forces2h 23m
14. Solutions3h 1m
15. Chemical Kinetics2h 53m
16. Chemical Equilibrium2h 29m
17. Acid and Base Equilibrium5h 1m
18. Aqueous Equilibrium4h 47m
19. Chemical Thermodynamics1h 50m
20. Electrochemistry2h 42m
21. Nuclear Chemistry2h 36m
22. Organic Chemistry5h 7m
23. Chemistry of the Nonmetals2h 39m
24. Transition Metals and Coordination Compounds3h 16m

3. Chemical Reactions

Naming Ionic Compounds

General Chemistry

3. Chemical Reactions

Naming Ionic Compounds

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Multiple Choice

Which of the following beryllium halides is considered an ionic compound?

BeI_2

BeCl_2

BeF_2

BeBr_2

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Verified step by step guidance

Step 1: Understand the nature of bonding in beryllium halides. Beryllium (Be) is a small, highly charged cation (Be^{2+}), and halides (F^-, Cl^-, Br^-, I^-) are anions. The type of bonding (ionic or covalent) depends on the difference in electronegativity and the polarizing power of Be^{2+}.

Step 2: Recall that ionic bonds typically form between metals and nonmetals with a large difference in electronegativity, while covalent bonds form when atoms share electrons more equally. Beryllium tends to form covalent bonds due to its small size and high charge density, which polarizes the electron cloud of the anion.

Step 3: Compare the halides: Fluoride ion (F^-) is the smallest and most electronegative halide, which makes BeF_2 more ionic because the Be^{2+} cation and F^- anion have a larger electronegativity difference and less covalent character.

Step 4: Larger halides like Cl^-, Br^-, and I^- are more polarizable, meaning Be^{2+} distorts their electron clouds more, leading to more covalent character in BeCl_2, BeBr_2, and BeI_2.

Step 5: Conclude that among the given options, BeF_2 is considered ionic due to the high electronegativity of fluorine and the resulting ionic bond, while the others are more covalent in nature.