1. Chemistry of Life (2.1) Part 1
Pre – AP Biology
Chemistry of Life (2.1)
Part 1

2. Element Chlorine (Cl)

3. Compound Sodium (Na) + Chlorine (Cl)  salt (NaCl)

4. CHNOPS = Life

5. Chemistry has many different levels of structure and terminology.
Which of the following chemical terms includes all the other terms?
Molecule
Element
Atom
Polymer

6. Atoms & Subatomic particles

7. Isotopes Differing numbers of neutrons

8. Ions Differing number of electrons

9. Atoms found on a Periodic Table See the energy levels of electrons?

10. Electron orbitals Electrons circling the nucleus

11. Molecule: Same element

12. Molecule: Different elements

13. Periodic Table of Elements Atomic Mass is shown on the bottom of each square Atomic Number is shown in the upper left corner

14. Elemental Oxygen How many protons in Oxygen atoms
Elemental Oxygen How many protons in Oxygen atoms? How many neutrons in Oxygen atoms normally?

15. Radioactive Isotopes

16. Pre – AP Biology
Chemistry of Life
Part 2

17. Potential Energy Energy of Position Which diver has more potential energy?

18. Kinetic Energy Energy of Movement

19. Potential “stored” energy of the electrons in the bond between Oxygen (O) and Hydrogen(H)

20. The “cloud” is created by moving (kinetic) electrons

21. Periodic Table of Elements Atomic Mass is shown on the bottom of each square Atomic Number is shown in the upper left corner

22. Period on a periodic table Period run horizontally, like sentences

23. Families on a periodic table Families run vertically, like columns

24. Covalent Bonds See the shared electrons between Carbon(C) and Hydrogen (H)?

25. Polar covalent bonding of water molecule See how each end(pole) has an electrical charge?

26. Structural Formula

27. Molecular Formula CH4 Methane gas 1 atom of Carbon &
4 atoms of Hydrogen

28. Ionic bonding See the electron being lost from Na and gained by Cl?

29. Ionic Compound Salt (NaCl)

30. Hydrogen Bonding See the positive Hydrogen (H) attracted to the negative Nitrogen (N)?

31. Chemical Reactions