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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0:49 minutes

Problem 80b

Textbook Question

Match the subatomic particles (1 to 3) to each of the descriptions below:
1. protons
2. neutrons
3. electrons
b. surround the nucleus

Verified step by step guidance

Identify the three subatomic particles: protons, neutrons, and electrons. Protons and neutrons are located in the nucleus, while electrons are found outside the nucleus.

Understand the description provided: 'surround the nucleus.' This refers to the region outside the nucleus where subatomic particles are located.

Recall that electrons are negatively charged particles that move in regions of space called orbitals around the nucleus.

Match the description 'surround the nucleus' to the subatomic particle that fits this behavior, which is the electron.

Conclude that the correct match for the description 'surround the nucleus' is the subatomic particle labeled as '3. electrons.'

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Key Concepts

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

Subatomic Particles

Subatomic particles are the fundamental constituents of atoms, which include protons, neutrons, and electrons. Protons carry a positive charge and are found in the nucleus, while neutrons are neutral and also reside in the nucleus. Electrons, on the other hand, are negatively charged and orbit the nucleus in various energy levels.

Atomic Structure

The atomic structure refers to the arrangement of subatomic particles within an atom. The nucleus, composed of protons and neutrons, is at the center, while electrons occupy regions around the nucleus, known as electron shells or orbitals. This structure is crucial for understanding chemical behavior and bonding.

Electron Configuration

Electron configuration describes the distribution of electrons in an atom's electron shells. Electrons fill these shells based on specific rules, such as the Aufbau principle, which states that electrons occupy the lowest energy levels first. This configuration influences an atom's reactivity and the types of bonds it can form.