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Which of these elements is most likely to be a good conductor of electricity?


A) N
B) S
C) He
D) Cl
E) Fe

F) C) and D)
G) A) and E)

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The elements in Group 8A are called the ________.

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Which pair of elements would be most likely to form an ionic compound?


A) P and Br
B) Zn and K
C) F and Al
D) C and S
E) Al and Rb

F) A) and C)
G) B) and C)

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Which of the following is the empirical formula for hexane,C6H14?


A) C12H28
B) C6H14
C) C3H7
D) CH2.3
E) C0.43H

F) B) and E)
G) C) and E)

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Which of the following is an ionic compound?


A) H2S
B) NH3
C) I2
D) KI
E) CCl4

F) A) and E)
G) C) and E)

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The alkali metal elements are found in _______ of the periodic table.


A) Group 1A
B) Group 2A
C) Group 3A
D) Period 7
E) Period 1

F) A) and B)
G) All of the above

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Give the number of protons (p) ,electrons (e) ,and neutrons (n) in one atom of chlorine- 37.


A) 37 p,37 e,17 n
B) 17 p,17 e,37 n
C) 17 p,17 e,20 n
D) 37 p,17 e,20 n
E) 17 p,37 e,17 n

F) B) and C)
G) B) and D)

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Determine the number of electrons and identify the correct symbol for an atom with 17 protons and 18 neutrons.


A) 17 electrons, Determine the number of electrons and identify the correct symbol for an atom with 17 protons and 18 neutrons. A) 17 electrons, B) 18 electrons, C) 17 electrons, D) 17 electrons, E) 18 electrons,
B) 18 electrons, Determine the number of electrons and identify the correct symbol for an atom with 17 protons and 18 neutrons. A) 17 electrons, B) 18 electrons, C) 17 electrons, D) 17 electrons, E) 18 electrons,
C) 17 electrons, Determine the number of electrons and identify the correct symbol for an atom with 17 protons and 18 neutrons. A) 17 electrons, B) 18 electrons, C) 17 electrons, D) 17 electrons, E) 18 electrons,
D) 17 electrons, Determine the number of electrons and identify the correct symbol for an atom with 17 protons and 18 neutrons. A) 17 electrons, B) 18 electrons, C) 17 electrons, D) 17 electrons, E) 18 electrons,
E) 18 electrons, Determine the number of electrons and identify the correct symbol for an atom with 17 protons and 18 neutrons. A) 17 electrons, B) 18 electrons, C) 17 electrons, D) 17 electrons, E) 18 electrons,

F) None of the above
G) A) and B)

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What terms defines a mass which is exactly equal to 1/12 the mass of one carbon-12 atom?


A) Isotope number
B) Mass number
C) Mass-to-charge ratio
D) Atomic number
E) Atomic mass unit

F) B) and E)
G) D) and E)

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Which of the following is a metal?


A) Nitrogen,N,Z = 7
B) Phosphorus,P,Z = 15
C) Arsenic,As,Z = 33
D) Thallium,Tl,Z = 81
E) Silicon,Si,Z = 14

F) All of the above
G) A) and E)

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The mass of a neutron is equal to the mass of a proton plus the mass of an electron.

A) True
B) False

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Lithium forms compounds which are used in dry cells,storage batteries,and in high-temperature lubricants.It has two naturally occurring isotopes,6Li (isotopic mass = 6.015123 amu) and 7Li (isotopic mass = 7.016005 amu) .Lithium has an atomic mass of 6.9412 amu.What is the percent abundance of lithium-6?


A) 92.53%
B) 86.65%
C) 49.47%
D) 7.47%
E) 6.015%

F) B) and D)
G) All of the above

Correct Answer

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The chemical formula for iron(II) nitrate is


A) Fe2(NO3) 3.
B) Ir(NO2) 2.
C) Fe2N3.
D) Fe(NO3) 2.
E) Fe(NO2) 2.

F) B) and C)
G) B) and E)

Correct Answer

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When J.J.Thomson discovered the electron,what physical property of the electron did he measure?


A) its charge,e
B) its charge-to-mass ratio,e/m
C) its temperature,T
D) its mass,m
E) its atomic number,Z

F) None of the above
G) D) and E)

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Determine the number of protons,electrons,and neutrons for the isotope gold-118.The symbol for gold is Au.


A) 118 protons,118 electrons,79 neutrons
B) 79 protons,79 electrons,118 neutrons
C) 79 protons,79 electrons,39 neutrons
D) 118 protons,118 electrons,39 neutrons
E) 79 protons,39 electrons,118 neutrons

F) B) and C)
G) A) and E)

Correct Answer

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What element is represented by X in the atomic symbol notation What element is represented by X in the atomic symbol notation ? A) Iridium B) Platinum C) Palladium D) Selenium E) Magnesium ?


A) Iridium
B) Platinum
C) Palladium
D) Selenium
E) Magnesium

F) A) and C)
G) C) and D)

Correct Answer

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What is the formula for lead(II) oxide?


A) PbO
B) PbO2
C) Pb2O
D) PbO4
E) Pb2O3

F) C) and D)
G) None of the above

Correct Answer

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What is the name of Ba(NO2) 2·3H2O?


A) barium nitrite
B) trihydrobarium(II) nitrite
C) barium nitrite trihydrate
D) barium(II) nitrite trihydrate
E) barium nitrate trihydrate

F) C) and D)
G) B) and D)

Correct Answer

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The elements in a column of the periodic table are known as


A) metalloids.
B) a period.
C) noble gases.
D) a group.
E) nonmetals.

F) B) and D)
G) B) and E)

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Determine the number of protons and identify the correct symbol for an atom with 20 neutrons and 20 electrons.


A) 20 protons, Determine the number of protons and identify the correct symbol for an atom with 20 neutrons and 20 electrons. A) 20 protons, B) 20 protons, C) 20 protons, D) 40 protons, E) 40 protons,
B) 20 protons, Determine the number of protons and identify the correct symbol for an atom with 20 neutrons and 20 electrons. A) 20 protons, B) 20 protons, C) 20 protons, D) 40 protons, E) 40 protons,
C) 20 protons, Determine the number of protons and identify the correct symbol for an atom with 20 neutrons and 20 electrons. A) 20 protons, B) 20 protons, C) 20 protons, D) 40 protons, E) 40 protons,
D) 40 protons, Determine the number of protons and identify the correct symbol for an atom with 20 neutrons and 20 electrons. A) 20 protons, B) 20 protons, C) 20 protons, D) 40 protons, E) 40 protons,
E) 40 protons, Determine the number of protons and identify the correct symbol for an atom with 20 neutrons and 20 electrons. A) 20 protons, B) 20 protons, C) 20 protons, D) 40 protons, E) 40 protons,

F) B) and C)
G) C) and D)

Correct Answer

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