CHEMISTRY UNIT REVIEW                                                              

  name______________________

               

1.        State the atomic theory (5-2).

 

2.        An atom is composed of (5-2)

Particle	Charge	Where found	Mass

 

1. Fill in the following chart using your periodic table

 

ELEMENT	ATOMIC NUMBER	ATOMIC MASS	NUMBER OF PROTONS	NUMBER OF NEUTRONS	NUMBER OF ELECTRONS
Strontium
Bromine
		3		2

 

2. Draw  Bohr model of :

1. phosohorous                                                                                    2. potassium

  

 

3. Atoms in a column share what physical characteristic?

  

4. Put a check in any box that applies to each example.(5-8)

Example	an atom	a molecule	an element	a compound
CO2
Cl2
Cu

  

5. For the following compound, how many different kinds of atoms are there?

How many total atoms are there?

H₂SO₄                                           

# OF KINDS OF ATOMS ___________

 # OF ATOMS____________

 Matching. Write the letter of the term that best fits each phrase.

 

1.        ___ A substance with only one kind of atom in its molecules                                        A. ATOMIC NUMBER

2.        ___A substance composed of different kinds of molecules                                            B. ION

3.        ___A group of atoms bonded together                                                                        C. COVALENT BOND

4.        ___A pure substance with more than one kind of atom in its molecules                        D. MIXTURE

5.        ___An atom with an electric charge                                                                             E. COMPOUND

6.        ___An atom with a different number of neutrons than the usual atom                              F. ATOMIC MASS

7.        ___The number of protons in an atom                                                                           G. ELEMENT

8.        ___The number of neutrons plus protons in an atom                                                      H. IONIC BOND

9.        ___A connection between atoms involving a sharing of electrons                                   I. MOLECULE

10.     ___ a connection between atom involving an attraction between oppositely                  J. ISOTOPE          charged atoms

 

WRITE AN EMPIRICAL FORMULA FOR WATER ______________________________

 

Write a structural formula for water ________________________________________

For each substance, write the letters of each description that applies

 

monosaccharide________________	A. CONTAINS CARBON
Lipid       _____________________	B. CONTAINS HYDROGEN
Protein   ______________________	C. CONTAINS OXYGEN
Disaccharide __________________	D. CONTAINS NITROGEN
Polysaccharide _________________	E. PROVIDES ENERGY FOR A CELL
	F. IS USED AS STRUCTURAL MATERIAL OF A CELL
	G. CONTAINS GLYCEROL
	H. IS a polymer OF AMINO ACIDS
	I. is composed of basic structure as follows:
	J. contains fatty acids
	k. has formula C12H22O11
	l. has formula C6H12O6
	m. A polymer of sugars
	n. includes oils and waxes
	o. includes glucose
	p. includes cellulose
	q. Is a carbohydrate