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CHEM 1301 SUMMER 2005
TEST 1 VERSION 1
NO CHEATING!
BUBBLE IN “1” IN THE P COLUMN TO GET YOUR GRADE POSTED!!!!! [the only way you’ll find out how you did!]
1.
The ancient Greeks believed that matter was made up of four elements. Only one of these elements is described as a pure substance
today. Which is it?
(A)
earth
2.
Which of the following is NOT a postulate of Dalton’s atomic theory?
(A)
(B)
(C)
(D)
(E)
all matter is made up of atoms
atoms are small and indivisible
atoms cannot be created or destroyed
atoms of a particular element can differ in some way
atoms of different elements are different
3.
Two substances, A and B, react together to form C and D. When 4.0 g of A react with the right amount of B, 6.0 g of C and 3.0 g of D
are formed. In another experiment with the same substances, 12.0 g of A are reacted to form 18.0 g of C. How many grams of B are
formed?
(A)
30.0 g
4.
Which of the following statements about Rutherford's experiment is false?
(A)
(B)
(C)
(D)
(E)
Alpha particles were used as they are positive.
The particles were fired at a piece of aluminum foil.
Most of the particles passed through the foil, indicating that most of the atoms were empty space.
A very few particles bounced back, indicating the presence of a small, massive, positive nucleus.
The experiment led to the discarding of the "plum-pudding" model of the atom (or the "chocolate chip cookie model").
5.
Which of the following elements does NOT have a symbol taken from a LATIN word?
(A)
iron
(B)
(B)
(B)
air
5.0 g
copper
(C)
(C)
(C)
gold
27.0 g
scandium
1
(D)
(D)
water
(E)
15.0 g
(D)
(E)
sodium
(E)
fire
10.0 g
potassium
6.
Which of the following elements is correctly matched with its group?
(A)
(D)
phosphorus is an alkali metal
nitrogen is a noble gas
7.
Which statement is true?
(A)
(B)
(C)
(D)
(E)
The elements may be broadly classified as metals, non-metals and noble gases.
Elements in a row in the periodic table have similar chemical properties.
In the periodic table that we use, the elements are arranged in order of increasing atomic number.
Rutherford's scattering experiment proved that all atoms contain electrons.
Experiments using the Cathode Ray Tube proved that all atoms contain electrons.
8.
Which of the following is incorrectly named as a law or theory?
(A)
(B)
(C)
(D)
(E)
The law of gravity that things fall to the ground
Dalton’s atomic theory that substances are composed of sub-microscopic particles
Charles’ law that the volume of a gas increases as the temperature increases
Avogadro’s law that the volume of a gas is proportional to the number of sub-microscopic particles
VSEPR theory that sub-microscopic molecules adopt shapes based on electron repulsion.
9.
Which of the following statements is FALSE?
(A)
(D)
selenium does not conduct electricity
silicon is a metalloid
10.
Which of the following is a lanthanide?
(A)
Dy
11.
Which of these scientists is NOT matched with the correct nationality?
(A)
(C)
(E)
John Dalton was British
Ernest Rutherford was British
Niels Bohr was German
(B)
(B)
(E)
P
flubber is a halogen
sulfur is a chalcogen
(C)
(B)
(E)
iron is malleable
hydrogen is a non-metal
(C)
W
(D)
(B)
(D)
manganese is an alkaline earth metal
(C)
Rn
Antoine Lavoisier was French
Dmitri Mendeleyev was Russian
2
carbon is ductile
(E)
U
12.
Which of the following statements is TRUE?
(A)
(B)
(C)
(D)
(E)
atoms contain equal numbers of protons and neutrons
the mass of an atom is equal to the number of protons + the number of electrons
neutrons have a mass of 0 and a charge of 1
to calculate the number of neutrons in an atom, use the mass in the periodic table
the atomic number is the number of electrons in an atom
13.
Which symbol corresponds to an atom with 26 neutrons and 25 electrons?
(A)
51
14.
A new type of atom is discovered that has 3 isotopes. 40% of the atoms have a mass of 270, and 35% have a mass of 272. If the
remaining isotope has a mass of 273, what is the atomic mass of the element?
(A)
270
15.
Rubidium is comprised of two isotopes, one of which has a natural abundance of 72% and a mass of 85.00 amu. If the calculated
atomic mass for rubidium is 85.56, what is the mass of the second isotope?
(A)
89 amu
16.
Which of the following statements is incorrect?
(A)
(C)
(E)
red light has a shorter wavelength than infrared
green light has a higher frequency than blue light
radiowaves have a longer wavelength than microwaves
17.
What is the energy of light that has wavelength of 8.923 x 10-7 m? (c = 3 x 108 m/s; h = 7.63 x 10-34 Js).
(A)
(D)
5.912 x 10-31 J
2.229 x 10-19 J
Fe
(B)
(B)
(B)
56
Fe
(C)
271.0
(C)
50 amu
(C)
(B)
(E)
55
Mn
(D)
271.5
(D)
87 amu
(D)
(B)
(D)
2.229 x 10-28 J
1.121 x 106 J
Mn
272.0
85 amu
(E)
(E)
(E)
51
Sb
272.5
37 amu
ultraviolet has a higher energy than violet light
gamma rays are the most energetic form of light
(C)
3
51
1.773 x 10-22 J
18.
Which of the following statements is true?
(A)
(C)
(E)
The lowest energy d-subshell is the 1d
Electrons in atoms can have any energy values
The sixth shell can contain a maximum of 36 electrons
19.
What is the electron configuration of sulfur?
(A)
1s22s22p63s23p4
20.
What is the last part of the electron configuration of plutonium (Pu)
(A)
2f5
(B)
(B)
2p4
6d5
(C)
(C)
(B)
(D)
1s21s62s22p6
6f5
4
A maximum of 14 electrons can go into a f-subshell
A boron atom has electrons in 3 shells
(D)
1s22s21p63s22p4
(E)
3p4
(D)
5d5
(E)
5f5
CHEM 1301 SUMMER 2005
TEST 1 VERSION 2
NO CHEATING!
BUBBLE IN “1” IN THE P COLUMN TO GET YOUR GRADE POSTED!!!!! [the only way you’ll find out how you did!]
1.
Which of these scientists is NOT matched with the correct nationality?
(A)
(C)
(E)
John Dalton was British
Ernest Rutherford was British
Niels Bohr was German
2.
Which of the following statements is TRUE?
(A)
(B)
(C)
(D)
(E)
atoms contain equal numbers of protons and neutrons
the mass of an atom is equal to the number of protons + the number of electrons
neutrons have a mass of 0 and a charge of 1
to calculate the number of neutrons in an atom, use the mass in the periodic table
the atomic number is the number of electrons in an atom
3.
Which symbol corresponds to an atom with 26 neutrons and 25 electrons?
(A)
51
4.
A new type of atom is discovered that has 3 isotopes. 40% of the atoms have a mass of 270, and 35% have a mass of 272. If the
remaining isotope has a mass of 273, what is the atomic mass of the element?
(A)
270
5.
Rubidium is comprised of two isotopes, one of which has a natural abundance of 72% and a mass of 85.00 amu. If the calculated
atomic mass for rubidium is 85.56, what is the mass of the second isotope?
(A)
89 amu
Fe
(B)
(B)
(B)
(B)
(D)
56
Fe
271.0
50 amu
(C)
(C)
(C)
55
Antoine Lavoisier was French
Dmitri Mendeleyev was Russian
Mn
271.5
87 amu
1
(D)
(D)
(D)
51
Mn
272.0
85 amu
(E)
(E)
(E)
51
Sb
272.5
37 amu
6.
Which of the following statements is incorrect?
(A)
(C)
(E)
red light has a shorter wavelength than infrared
green light has a higher frequency than blue light
radiowaves have a longer wavelength than microwaves
7.
What is the energy of light that has wavelength of 8.923 x 10-7 m? (c = 3 x 108 m/s; h = 7.63 x 10-34 Js).
(A)
(D)
5.912 x 10-31 J
2.229 x 10-19 J
8.
Which of the following statements is true?
(A)
(C)
(E)
The lowest energy d-subshell is the 1d
Electrons in atoms can have any energy values
The sixth shell can contain a maximum of 36 electrons
9.
What is the electron configuration of sulfur?
(A)
1s22s22p63s23p4
10.
What is the last part of the electron configuration of plutonium (Pu)
(A)
2f5
11.
The ancient Greeks believed that matter was made up of four elements. Only one of these elements is described as a pure substance
today. Which is it?
(A)
earth
(B)
(E)
(B)
(B)
(B)
2p4
6d5
air
(B)
(D)
2.229 x 10-28 J
1.121 x 106 J
(C)
(C)
(C)
ultraviolet has a higher energy than violet light
gamma rays are the most energetic form of light
(C)
(B)
(D)
1s21s62s22p6
6f5
gold
2
1.773 x 10-22 J
A maximum of 14 electrons can go into a f-subshell
A boron atom has electrons in 3 shells
(D)
1s22s21p63s22p4
(E)
3p4
(D)
5d5
(E)
5f5
(D)
water
(E)
fire
12.
Which of the following is NOT a postulate of Dalton’s atomic theory?
(A)
(B)
(C)
(D)
(E)
all matter is made up of atoms
atoms are small and indivisible
atoms cannot be created or destroyed
atoms of a particular element can differ in some way
atoms of different elements are different
13.
Two substances, A and B, react together to form C and D. When 4.0 g of A react with the right amount of B, 6.0 g of C and 3.0 g of D
are formed. In another experiment with the same substances, 12.0 g of A are reacted to form 18.0 g of C. How many grams of B are
formed?
(A)
30.0 g
14.
Which of the following statements about Rutherford's experiment is false?
(A)
(B)
(C)
(D)
(E)
Alpha particles were used as they are positive.
The particles were fired at a piece of aluminum foil.
Most of the particles passed through the foil, indicating that most of the atoms were empty space.
A very few particles bounced back, indicating the presence of a small, massive, positive nucleus.
The experiment led to the discarding of the "plum-pudding" model of the atom (or the "chocolate chip cookie model").
15.
Which of the following elements does NOT have a symbol taken from a LATIN word?
(A)
iron
16.
Which of the following elements is correctly matched with its group?
(A)
(D)
phosphorus is an alkali metal
nitrogen is a noble gas
(B)
(B)
5.0 g
(C)
copper
(C)
(B)
(E)
27.0 g
(D)
scandium
flubber is a halogen
sulfur is a chalcogen
3
15.0 g
(D)
(C)
(E)
sodium
(E)
10.0 g
potassium
manganese is an alkaline earth metal
17.
Which statement is true?
(A)
(B)
(C)
(D)
(E)
The elements may be broadly classified as metals, non-metals and noble gases.
Elements in a row in the periodic table have similar chemical properties.
In the periodic table that we use, the elements are arranged in order of increasing atomic number.
Rutherford's scattering experiment proved that all atoms contain electrons.
Experiments using the Cathode Ray Tube proved that all atoms contain electrons.
18.
Which of the following is incorrectly named as a law or theory?
(A)
(B)
(C)
(D)
(E)
The law of gravity that things fall to the ground
Dalton’s atomic theory that substances are composed of sub-microscopic particles
Charles’ law that the volume of a gas increases as the temperature increases
Avogadro’s law that the volume of a gas is proportional to the number of sub-microscopic particles
VSEPR theory that sub-microscopic molecules adopt shapes based on electron repulsion.
19.
Which of the following statements is FALSE?
(A)
(D)
selenium does not conduct electricity
silicon is a metalloid
20.
Which of the following is a lanthanide?
(A)
Dy
(B)
P
(B)
(E)
iron is malleable
hydrogen is a non-metal
(C)
W
(D)
4
(C)
Rn
carbon is ductile
(E)
U