Download Chapter 3 Make up Test 2004

Name ___________________
Period___________________
Chapter 3 Make up Test 2004
I. Periodic Table Questions:
_____ 1. The element located at position period 3 and column IVA is
a. Pb
b. Cu
c. Si
d. Ga
_____2. . The element located at position period 5 and column VA is
a. Bi
b. Sb
c. Si
d. Sn
_____3. The element located at position period 2 and column IIIA is
a. Ca. b. B
c. Al d. Zn
e. Be
_____4. What period and group is oxygen in?
a. Period 1, group IVA
c. Period 2, group IA
b. Period 2, group VIA
d. Period 3, group VA
_____5. What is another name for group IA on the periodic chart?
a. Alkali metals
b. halogens c. noble gases
d. carbon family
_____6. Which element is located in period 6, group IIIA?
a. Ca b. K
c. Tl
d. Mg
_____7. Go to period 4 group VIA. What is the element’s symbol?
a. Se
b. Kr
c. As
d. Ge
____8. What element is located in period 3, group IIA?
a. Mg
b. Na
c. Mn
d. Fe
_____9.Which element is located in period 5, group IIB?
a. W
b.Ag
c.Mo
d.Cd
_____10. Which element is located in period 2, group VIA?
a. S b. Se
c. O
d. Te
Conversions SHOW ALL WORK PLEASE:
_____11. How many moles are in 200.0 grams of beryllium?
_____12.How many moles are in 55.5 grams of oxygen?
_____13. Convert 3.00 grams of Sodium to moles.
e. In
____14. How many atoms are in 16.00 moles of Ca?
_____15. How many atoms are in 34.00 grams of sodium?
_____16. What was Thomson’s contribution to the structure of the atom?
_____17. What was Millikan’s contribution to the structure of the atom?
_____18.
List two of Dalton’s Atomic Theory postulates.
a.
b.
_____19.
What is not true today for Dalton’s theory?
_____20. What is the approximate atomic mass of an isotope of sodium that has 11 electrons,
11 protons, and 13 neutrons?
_____21. The two main parts of an atom are the:
A. shells and electron energy levels
C. nucleus and electron cloud
B. nucleus and neutrons
D. neutrons and energy shells
______22. Combining Thomson’s work on the charge-to-mass ratio of an electron with
Millikan’s work on the charge of an electron made it possible to determine the _____
A. diameter of an electron
B. pathway of an electron
C. mass of an electron
D. speed of an electron
______23. Nickel-60 has an atomic number of 28. How many neutrons does this isotope have?
A. 28 B. 60 C. 32 D. 88
______24. Two isotopes of an element have different ________
A. Atomic numbers
B. numbers of electrons
C. mass numbers
D. numbers of protons
______25. Rutherford’s gold-foil experiment demonstrated that ________
A.
B.
______26. Which of the following statements explains why chemists do not count atoms and
molecules directly?
A. Atoms and molecules are extremely small
B. All of the relationships in a chemical reaction can be expressed as mass ratios
C. Matter is neither created nor destroyed in a chemical reaction
D. Reactions occur one atom at a time
______27. For the ion O-2
A. It has 8 electrons B. It has 10 electrons C. It has 6 electrons
D. It has 10 protons
Read carefully for questions 28-30: Experiments reveal that all oxygen atoms have six protons.
However, they may have atomic masses of 16, 17, or 18.
______28. The nucleus of each carbon atom contains:
A. neutrons and electrons
B. protons and electrons
C. neutrons and protons
D. electron energy levels
______29. For an oxygen atom
A. There can be 8 electrons
C. There can be 6 electrons
B. There can be 10 electrons
D. There can be 10 protons
______30. The data indicates that oxygen has
A. no isotopes
B. three isotopes
C. one electron shell D. eight electron shells
______31. The number of atomic mass units (u) in an atom is the same as its
A. atomic number
B. number of neutrons
C. atomic weight
D. number of orbitals
______32. For the ion Ca+2
A. It has 20 electrons B. It has 18 electrons C. It has 22 electrons D. It has 22 protons
_____33. If Z represents the atomic number and A the mass number of an isotope, then the number of
neutrons in the atom is equal to:
A. A + Z
B. A – Z
C. Z - A
D. none of the preceding
______34. Which of the following is a property of metals
a. soft
b. good insulator
c. good conductor
d. dull
______35. Which pair of substances illustrates the law of multiple proportions?
A. H1, H2, H3
B. Co, CO
C. H2O, H2O2
D. all of the above
______36. An element consists of atoms all of which have the same:
A. mass number
B. atomic number
C. Avogadro’s number
D. neutron number
______37. The mass number and electric charge of a proton are respectively:
A. 1,0
B. 0, + 1
C. 1, +1
D. 1, -1
_____38. What is tritium?
39. Draw the Bohr model for the Fluorine atom before and after becoming an ion. Show the protons,
neutrons and electrons. Show if electrons are gained or lost.
40. Draw the Bohr model for the Aluminum atom before and after becoming an ion. Show the
protons, neutrons and electrons. Show if electrons are gained or lost.