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

Subatomic Particles (Simplified)

GOB Chemistry

2. Atoms and the Periodic Table

Subatomic Particles (Simplified)

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0:31 minutes

Problem 94d

Textbook Question

Indicate if each of the following statements is true or false:
d. The proton and the electron have about the same mass.

Verified step by step guidance

Understand the context: The problem is asking about the relative masses of a proton and an electron. This involves knowledge of subatomic particles and their properties.

Recall the mass of a proton: A proton has a mass of approximately 1.67 × 10⁻²⁷ kg, which is significantly larger than the mass of an electron.

Recall the mass of an electron: An electron has a mass of approximately 9.11 × 10⁻³¹ kg, which is much smaller than the mass of a proton.

Compare the two masses: The mass of a proton is roughly 1836 times greater than the mass of an electron. This indicates that their masses are not similar.

Conclude the statement's validity: Based on the comparison, the statement 'The proton and the electron have about the same mass' is false.

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Mass of Subatomic Particles

In atomic physics, the mass of subatomic particles is crucial for understanding their behavior. Protons, which are found in the nucleus of an atom, have a mass of approximately 1.67 x 10^-27 kg, while electrons, which orbit the nucleus, have a much smaller mass of about 9.11 x 10^-31 kg. This significant difference in mass affects the overall mass of an atom and its chemical properties.

Charge of Subatomic Particles

Protons and electrons carry opposite electric charges, which is fundamental to the structure of atoms. Protons have a positive charge, while electrons have a negative charge. This charge difference leads to the electromagnetic force that holds electrons in orbit around the nucleus, balancing the atom's overall charge and contributing to its stability.

Atomic Structure

The atomic structure is the arrangement of protons, neutrons, and electrons within an atom. Understanding this structure is essential for grasping concepts in chemistry and physics, including how atoms interact in chemical reactions. The mass and charge of protons and electrons play a vital role in determining the atom's identity and its behavior in various contexts.