In-Depth Notes on Atoms, Compounds, and Chemical Reactions

Classroom Conduct

• Best Effort: We try our best in our classroom.
• Respect: We respect each other.
• Teamwork: We are a team that learns from mistakes and celebrates each other's successes.

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Atoms and Matter

Learning Intentions

• Recognize that all matter is composed of atoms and has mass.

Success Criteria

• Compound Definition: Explain what a compound is.
• Classification of Compounds: Classify compounds based on common chemical characteristics.

SMART Goals

• Specific: What you want to achieve.
• Measurable: How to know when you've reached it.
• Achievable: Is it within your power to accomplish?
• Realistic: Can you realistically achieve it?
• Timely: When do you want to accomplish it?

Glossary of Key Terms

• Atom: The smallest unit of an element, consisting of protons, neutrons, and electrons.
• Compound: A substance composed of two or more different types of atoms bonded together in fixed ratios.
• Element: A pure substance made of only one type of atom.

Components of an Atom

• Proton (+): Positive charge, located in the nucleus, with a mass of approximately 1 amu.
• Neutron (0): Neutral charge, also in the nucleus, approximately 1 amu.
• Electron (-): Negative charge, found in electron orbitals, negligible mass.

Isotopes

• Definition: Atoms of the same element with the same number of protons but different numbers of neutrons.
• Example: Hydrogen isotopes include Protium (1H), Deuterium (2H), and Tritium (3H).

Matter and Mass

• Matter: Physical substance with mass and volume.
• Mass vs. Weight: Mass is constant and does not change; weight depends on gravitational force.