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Chemistry: Atoms and Their Structure in Our Bodies

Learn about atoms, their structure, and why they are important in chemistry. Topics include atomic nucleus, protons, neutrons, electrons, isotopes, and radioactive atoms.

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Chemistry: Atoms and Their Structure in Our Bodies

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  1. Chemistry • Do Now: • Turn in your homework to bin. • Answer the following questions in your notebook. • What is an atom? • What is the structure of an atom? • Why do we care?

  2. Chapter 2: Chemistry Raw materials and fuel for our bodies Lectures by Mark Manteuffel, St. Louis Community College

  3. 2.1–2.3 Atoms form molecules through bonding.

  4. 2.1 Everything is made of atoms. • An element is a substance that cannot be broken down chemically into any other substances. • An atom is a bit of matter that cannot be subdivided any further without losing its essential properties.

  5. Atomic Structure:The nucleus, protons, and neutrons

  6. Atomic Structure: Electrons

  7. Atomic Numbers Insert new figure 2.3

  8. Isotopes insert new fig 2.4

  9. Radioactive Atoms • A few atomic nuclei are not stable and break down spontaneously. • These atoms are radioactive. • They release, at a constant rate, a tiny, high-speed particle carrying a lot of energy.

  10. 2.2 An atom’s electrons determine how (and whether) the atom will bond with other atoms. Electron shells

  11. Electron Shells Insert new fig 2-6

  12. The Versatility of Carbon Insert fig 2-7

  13. Ions Insert new fig 2-8

  14. CHECKPOINT Ions Isotopes Radioactive Atoms

  15. Cornell Notes • https://www.youtube.com/watch?v=WtW9IyE04OQ • Homework is to use the Cornell notes method to take notes on your reading. • You may highlight/annotate your copied text. You will receive the actual textbook next week – you may not highlight write in that book.

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