Chemistry Diagnostic Exam: Quiz! Trivia
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- 1.What is the number of electrons in a completely filled second shell of an atom?
- A.
32
- B.
2
- C.
18
- D.
8
- 2.What is the number of electrons in an atom that has 3 protons and 4 neutrons?
- A.
1
- B.
7
- C.
3
- D.
4
- 3.As a result of the gold foil experiment, it was concluded that an atom.
- A.
Contains protons, neutrons, and electrons
- B.
Contains a small, dense nucleus
- C.
Has positrons and orbitals
- D.
Is a hard, indivisible sphere
- 4.Which statement describes the distribution of charge in an atom?
- A.
A neutral nucleus is surrounded by one or more negatively charged electrons.
- B.
A neutral nucleus is surrounded by one or more positively charged electrons.
- C.
A positively charged nucleus is surrounded by one or more negatively charged electrons.
- D.
A positively charged nucleus is surrounded by one or more positively charged electrons.
- 5.Which atom in the ground state has an outermost electron with the most energy?
- A.
Cs
- B.
K
- C.
Li
- D.
Na
- 6.Which particle has the least mass?
- A.
Alpha particle
- B.
Beta particle
- C.
Neutron
- D.
Proton
- 7.The elements in Group 2 are classified as
- A.
Metals
- B.
Metalloids
- C.
Nonmetals
- D.
Noble gases
- 8.Which list includes elements with the most similar chemical properties?
- A.
Br, Ga, Hg
- B.
Cr, Pb, Xe
- C.
O, S, Se
- D.
N, O, F
- 9.
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- A.
Mass number, only
- B.
Atomic number, only
- C.
Both mass number and atomic number
- D.
Neither mass number nor atomic number
- 10.Which pair represents two forms of an element in the same phase at STP but with different structures and different properties?
- A.
I2(s) and I2(g)
- B.
O2(g) and O3(g)
- C.
H2(g) and Hg(g)
- D.
H2O(s) and H2O(l)
- 11.The elements on the Periodic Table are arranged in order of increasing
- A.
Atomic mass
- B.
Atomic number
- C.
Molar mass
- D.
Oxidation number
- 12.What is the IUPAC name for the compound ZnO?
- A.
Zinc oxide
- B.
Zinc oxalate
- C.
Zinc peroxide
- D.
Zinc hydroxide
- 13.Which atom attains a stable valence electron configuration by bonding with another atom?
- A.
Neon
- B.
Radon
- C.
Hydrogen
- D.
Helium
- 14.An ionic bond can be formed when one or more electrons are
- A.
Equally shared by two atoms
- B.
Unequally shared by two atoms
- C.
Transferred from the nucleus of one atom to the nucleus of another atom
- D.
Transferred from the valence shell of one atom to the valence shell of another atom
- 15.Which sample of CO2 has a definite shape and a definite volume?
- A.
CO2 (aq)
- B.
CO2 (g)
- C.
CO2 (l)
- D.
CO2 (s)
- 16.What occurs in order to break the bond in a Cl2 molecule?
- A.
Energy is absorbed.
- B.
Energy is released.
- C.
The molecule creates energy.
- D.
The molecule destroys energy.
- 17.A sealed, rigid 1.0-liter cylinder contains He gas at STP. An identical sealed cylinder contains Ne gas at STP. These two cylinders contain the same number of
- A.
Atoms
- B.
Electrons
- C.
Ions
- D.
Protons
- 18.Which statement describes a chemical change?
- A.
Alcohol evaporates.
- B.
Water vapor forms snowflakes.
- C.
Table salt (NaCl) is crushed into powder.
- D.
Glucose (C6H12O6) and oxygen produce CO2 and H2O.
- 19.Which statement describes the particles of an ideal gas according to the kinetic molecular theory?
- A.
The gas particles are arranged in a regular geometric pattern.
- B.
The gas particles are in random, constant, straight-line motion.
- C.
The gas particles are separated by very small distances, relative to their sizes.
- D.
The gas particles are strongly attracted to each other.
- 20.Which sample of matter is classified as a substance?
- A.
Air
- B.
Ammonia
- C.
Milk
- D.
Seawater
- 21.Which element has the lowest electronegativity value?
- A.
F
- B.
Fr
- C.
Cl
- D.
Cr
- 22.At standard pressure, CH4 boils at 112 K and H2O boils at 373 K. What accounts for the higher boiling point of H2O at standard pressure?
- A.
Covalent bonding
- B.
Ionic bonding
- C.
Hydrogen bonding
- D.
Metallic bonding
- 23.A mixture of sand and table salt can be separated by filtration because the substances in the mixture differ in
- A.
Solubility in water
- B.
Freezing point
- C.
Density at STP
- D.
Boiling point
- 24.Systems in nature tend to undergo changes toward
- A.
Lower energy and lower entropy
- B.
Lower energy and higher entropy
- C.
Higher energy and lower entropy
- D.
Higher entropy and higher entropy
- 25.In the wave-mechanical model of the atom, an orbital is the most probable location of
- A.
A proton
- B.
A positron
- C.
A neutron
- D.
An electron
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