1. The Chemistry of Life
Chapter 6

2. Basics of Chemistry The cell is a complex chemical factory.
It is made of atoms, elements, compounds, and molecules.

3. Do Now!
Answer questions 1-2 on page 85 in UPCO.

4. The Atom Living and non-living things are made up of atoms.
The center core of the atom is the nucleus.
The nucleus is made up of particles called protons (+ charge), and neutrons (neutral charge).
Electrons (- charged) revolve around the nucleus.
Electrons move in different levels called shells, or orbits.
# electrons = # protons.

5. Do Now!
Answer questions 1-4 on pages 85, 86 in UPCO.

6. Elements An element is a substance made up of only one kind of atom.
There are over 110 elements (92 occur naturally- the others are man made).
Elements can’t be broken down.
Each element is represented by a symbol (one/ or two letters).

7. Do Now!
Answer questions 1-5 on page 86 in UPCO.

8. Compounds
Compounds are formed when two or more elements are chemically combined.
Elements combine to form compounds by a process called chemical bonding.
Bonds occur by the sharing (covalent) or transferring (ionic) of electrons between atoms.

9. Do Now!
Answer questions 1-3 on page 87 in UPCO.

10. Molecules It is the smallest part of an element or compound.
It is capable of independent motion.
It is made up of definite numbers and kinds of atoms bonded together.

11. Do Now!
Answer questions 1+2 on page 88 in UPCO.

12. Ions An ion is an atom that has lost or gained electrons.
The atom has become electronically charged.
Chemical bonds formed by losing or gaining electrons are called ionic bonds.

13. Do Now!
Answer questions 1+2 in the middle of page 88 in UPCO.

14. Covalent Bonds
These bonds are formed when electrons are shared.

15. Do Now!
Answer question #1 at the top of page 89 in UPCO.

16. Chemical Formulas
A chemical formula represents the chemical makeup of a compound.
It shows the kinds, numbers, and arrangements of atoms (structural formula).

17. Do Now!
Answer questions 1-5 on page 89 in UPCO.

18. Equations Equations are used to describe chemical reactions.
The substances that start the reaction are called the reactants (left side of equation).
The substances made by the reaction are called the products (right side of the equation).

19. Do Now!
Answer questions 1-5 on page 90 in UPCO.

20. Organic and Inorganic Compounds
Inorganic compounds do not contain hydrogen and carbon.
Organic compounds do contain both carbon and hydrogen.

21. Do Now!
Answer questions 1-3 on the bottom of page 90 in UPCO.

22. Let’s go to the Video!

23. Video: One More Time!