AVA Heading:
Unit 1 Exam Study Guide- Atomic Structure
Vocabulary:
Independent Variable
Gold Foil Experiment
Chemical Properties
Dependent Variable
Plum Pudding Model
Alkali Metals
Control Variable
Bohr Model
Alkaline Earth Metals
Matter
Electron Cloud Model
Halogens
Mass
Atomic Number
Noble Gases
Atom
Atomic Mass
Transition Metals
Law of Conservation of
Matter
Mass Number
Metal
Element
Non-metal
Compound
Metalloid
Physical Change
Reactivity
Chemical Change
Period
Isotope
Group
Physical Properties
Valence Electron
Proton
Neutron
Electron
Nucleus
Orbitals
1.
2.
3.
4.
Who proposed the first model of the atom?
According to the Ancient Greeks, what are the 4 elements?
What is the Law of Conservation of Matter?
What were the major discoveries of the following scientists?
a. Ernest Rutherford
b. Antoine Lavoisier
c. J.J. Thomson
5. Draw and describe the models of each of the following atoms.
a. Dalton
b. Thomson
c. Rutherford
d. Bohr
e. Electron Cloud Model
6. Describe how Rutherford’s Gold Foil Experiment proved that an atom is made of mostly
empty space with a positively charged nucleus.
7. Put the following models of the atom in chronological order.
a. Electron Cloud Model
b. Plum Pudding Model
c. Rutherford Model
d. Bohr Model
e. Dalton Model
8. Fill in the chart below:
Subatomic Particle
Proton
Neutron
Electron
Charge of Particle
Location in the Atom
9. Label the following in the picture below:
a. Atomic Number
b. Element Symbol
c. Atomic Mass
10. Fill in the chart below.
Element
Name
Phosphorus
Element
Symbol
Ti
Atomic
Number
Mass
Number
15
31
#
Protons
22
#
Electrons
22
15
8
30
#
Neutrons
9
29
11. Give 3 examples of a physical change.
12. Give 3 examples of a chemical change.
13. Draw a Bohr Model of Oxygen.
14. What are the 5 evidences of a chemical change?
15. Describe how the properties of elements are different than the properties of
compounds. Give an example.
30
16. Label the following on the Periodic Table. (10pts)
a. Alkali Metals
b. Noble Gases
d. Alkaline Earth Metals
c. Transition Metals
e. Halogens
17. Give 2 examples of each of the following.
a. Metal
b. Non-metal
c. Metalloid
18. What are the 3 ways Mendeleyev organized the periodic table?
19. Which of the following elements is most reactive?
a. F
b. Ar
c. Xe
d. Rn
20. Give an example of 3 elements in the same period.
21. Give an example of 3 elements in the same group.
22. Fill in the Blank (2 pt)
At room temperature most elements are ________________ (solid, liquid, gas)
23. What are valence electrons? How can I determine the number of valence electrons in an
element from the periodic table?