BIOL201 - Study 2

BIOL201 - Study 2 - the orbital projection 13 Which...

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Biology 201: Cellular Biology and Genetics Fall 2004 Study Guide: Chapter 2 1. Define an element in chemical terms. 2. What are the most common elements in living organisms? 3. What is a compound? 4. Describe the subatomic structure of an atom. 5. Discriminate between the atomic number and the atomic weight. 6. Be able to determine the number of neutrons based on the atomic number and atomic weight of an element. 7. Which subatomic number defines an element? 8. What is the difference between the isotopes of an element? 9. What is a radioactive isotope? 10. How do we use radioactive isotopes of elements in biological research? 11. Describe the distribution of electrons in atoms in detail. 12. Be able to choose an element in one of the first three rows of the periodic table and draw
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Unformatted text preview: the orbital projection. 13. Which characteristic of the electron distribution in an atom determines its’ chemical reactivity? 14. Describe the four types of chemical bonds and list in terms of strength. 15. What is the basis of covalent bonds and how are the number of bonds formed by a given element related to the distribution of electrons in the atoms of the element? 16. Describe the orbital projection of ethanol. 17. What is a polar bond and what determines if a bond is polar or non-polar? Which of the following would be polar? N-H, C=O, C-C, C-H, O-P 18. What is an ionic bond? Describe its strength. 19. When are Van der Waals forces important?...
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