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

10. Periodic Properties of the Elements

Valence Electrons of Elements

General Chemistry

10. Periodic Properties of the Elements

Valence Electrons of Elements

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Multiple Choice

Which of the following best describes valence electrons and explains their importance in chemistry?

Valence electrons are the electrons found in the innermost shell of an atom; they are important because they determine the atomic mass.

Valence electrons are the electrons in the outermost shell of an atom; they are important because they determine how atoms interact and bond with each other.

Valence electrons are protons in the nucleus; they are important because they define the element's identity.

Valence electrons are neutrons in the nucleus; they are important because they affect the stability of the atom.

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Verified step by step guidance

Step 1: Understand what valence electrons are. Valence electrons are the electrons located in the outermost shell (energy level) of an atom.

Step 2: Recognize the role of valence electrons in chemistry. These electrons are crucial because they participate in chemical bonding and determine how atoms interact with each other.

Step 3: Differentiate valence electrons from other subatomic particles. Protons and neutrons are found in the nucleus and do not directly participate in bonding.

Step 4: Note that valence electrons influence chemical properties such as reactivity, bonding type (ionic, covalent), and molecule formation.

Step 5: Conclude that the best description is: 'Valence electrons are the electrons in the outermost shell of an atom; they are important because they determine how atoms interact and bond with each other.'