A
v.
October 09
Atomic Theory and Periodic Table Unit Test
DIRECTIONS:
TAKE YOUR TIME AND READ THE QUESTIONS SLOWELY. If you have a question, don’t
hesitate to raise your hand and ask for help. I might not be able to give you the answer your looking
for but it never hurts to ask. MAKE SURE THAT YOU RECORD THE VERSION NUMBER IN THE
UPPER LEFT HAND CORNER OF THE QUIZ ON YOUR SCANTRON IN THE BOX THAT SAYS
“FORM”. DO NO WRITE ON THIS QUIZ. MARK A FOR TRUE AND B FOR FALSE.
1. In what direction does atomic number
increase on the periodic table?
a. 
b. 
c. 
d. 
e. B & C are both true
f. B & A are both true
2. How many protons does Potassium have in
its nucleus?
a. 39
b. 39.1
7. What is the atomic number of Phosphorus?
a. 14
b. 31
c. 30.973
d. 5
e. None of the above
8. In what direction on the periodic table does
atomic mass increase most of the time?
a. 
b. 
c. 
d. 
c. 19
e. B & C are both true
d. 1
f. B & A are both true
3. T or F
Iodide has a higher atomic
number then Tellurium
4. How many protons does Phosphorus have?
a. 30.97
b. 31.0
c. 31
d. 15
5. What is the atomic mass of Iron?
a. 26
b. 54
c. 55.8
d. 60
e. None of the above
6. T or F
Moving from left to right across
the periodic table atomic number always
increases.
9. Which of the following elements has an
atomic mass larger then Tellurium?
a. Indium
b. Carbon
c. Iodine
d. Xenon
10. What element has 17 protons in its nucleus?
a. Fluorine
b. Oxygen
c. Neon
d. Chlorine
11. Which of the following elements is NOT a
metal?
a. Aluminum
b. Barium
c. Sodium
d. Potassium
e. Krypton
12. Which one of the following elements is a
semi-metal?
a. Sodium
b. Carbon
c. Copper
d. Gold
19. Select the element that is not a semi-metal.
a. Boron
b. Germanium
c. Phosphorus
d. Tellurium
e. Arsenic
e. Silicon
13. Is Sulfur a metal, non-metal or semi-metal?
a. Metal
b. Semi-metal
c. Non-metal
14. Which one of the following elements is a
metal?
a. Oxygen
b. Phosphorus
c. Chlorine
d. Fluorine
e. Magnesium
15. What group of elements does Chlorine belong
too?
a. Noble gases
b. Alkaline earth metals
c. Halogens
d. Semi-metals
16. What group of elements does Helium belong
too?
a. Non-metals
b.
c.
d.
e.
f.
Metals
Semi-metals
Halogens
Alkali Earth metals
None of the above
17. Hydrogen is a…
a. Metals
b. Semi-metal
c. Halogen
d. Non-metal
e. None of the above.
18. Which of the following elements all belong in
the Halogen group?
a. Nitrogen, Bromine, Fluorine, &
Iodine
b. Iodine, Bromine, Chlorine, &
Potassium
c. Fluorine, Neon, Chlorine, & Sulfur
d. Fluorine, Iodine, Bromine, &
Chlorine.
20. Which one of the following elements is a
metal?
a. Chlorine
b. Phosphorus
c. Silicon
d. Iodine
e. Potassium
21. Most of the mass in an atom is located
where?
a. The mass of an atom is spread evenly
throughout
b. Electron cloud
c. Nucleus
d. None of the above
22. How much of an atom is empty space?
a. 90%
b. 10%
c. 5%
d. 99.999%
e. None of the above
23. What is inside of the nucleus?
a. Positrons
b. Photons
c. Electrons
d. None of the above
24. Which of the following statements most
accurately describes an atom?
a. An atom is like plum pudding, all of
the mass and charge are spread evenly
throughout.
b. Most of the space within an atom is
located in the nucleus.
c. Most of the mass in atom is
located in the nucleus, but the
nucleus is much smaller then
the actual atom itself.
d. None of these statements accurately
describe an atom.
25. Which of the following sub atomic particles
has a mass of 1 amu?
a. Protons
b. Positrons
c. Electrons
d. Neutrons
e. A & D are both true
26. The ________________ of the atom occupies
almost no volume but contains almost all the
mass
a. Electron cloud
b. Valence electron shell
c. Core electrons
d. nucleus
27. T or F
Electrons have a positive charge.
28. Which of the following is NOT a subatomic
particle
a. Electron
b. photon
c. Neutron
d. Proton
29. T or F
Electrons have almost no mass
30. If the atom were a football stadium the
nucleus would be…
a. A truck inside the stadium
b. The goal post inside the stadium
c. Ten people inside the stadium
d. A marble inside the stadium
31. What is the name of the process that is going
on inside of stars?
a. Fusion
b. Fission
c. Combustion
d. Burning
32. Where are most of the elements on the
periodic table created?
a. In laboratories
b. They were created immediately after
the big bang
c. Inside of stars
d. In processes occurring on earth
33. ____________ is when one nucleus combines
with another nucleus to form a bigger
element
a. Fission
b. Combustion
c. Dehydration
d. Fusion
e. None of the above
34. _____________ is when a very heavy
element splits into two smaller elements
a. Fission
b. Combustion
c. Dehydration
d. Fusion
e. None of the above
35. Which of the following elements existed
before the first stars were formed?
a. Carbon
b. Oxygen
c. Sulfur
d. Neon
e. Hydrogen
36. What process gives us all the energy we have
on earth?
a. Fission
b. Combustion
c. Fusion
d. Radioactive decay
37. What is the name of the process that is going
on inside of nuclear power plants like the one
homer simpson works at?
a. Fusion
b. Fossil Fuel combustion
c. Fission
d. Nucleosynthesis
38. T or F
My body is made of elements that
were at one point created inside of a star.
39. Four hydrogen atoms can combine to form a
helium atom; this is an example of what?
a. Fusion
b. Fission
c. Endothermic chemical reaction
d. None of the above
40. T or F
Fusion gives us the energy we
have on earth and the higher elements that
make up our bodies.