Deck 2: Atoms, Molecules, and Ions

Question 1

Which of the following is not a correct element name-symbol combination? Outcome # 1) DOK 1

A) copper, Cu
B) arsenic, Ar
C) gold, Au

Answer 1

arsenic, Ar

Question 2

Which of the following gases exists as a diatomic molecule? Outcome # 9) DOK 1)

A) krypton
B) hydrogen
C) argon

Answer 2

hydrogen

Question 3

Elements arranged horizontally in the periodic table are in the same_____? Outcome # 2) DOK 1)

A) group or family
B) period
C) column

Answer 3

period

Question 4

Structural isomers are considered molecules with the same ____________. Outcome # 1,5,9) DOK 1

A) kinds and number of atoms but a different arrangement of these atoms
B) number of electrons and protons but a different number of neutrons
C) molecular formula but with a different overall charge

Question 5

Due to periodicity, which of the following elements has chemical behavior similar to that of Oxygen? Outcome # 1,2,8) DOK 1

A) bromine
B) sulfur
C) carbon

Question 6

Chlorine gas is considered a _____? Outcome # 2) DOK 1)

A) noble gas
B) halogen
C) chalcogen

Question 7

Oxygen gas is considered a _____? Outcome # 2) DOK 1) Paired item 1)

A) noble gas
B) halogen
C) chalcogen

Question 8

What is the correct formula for leadII) nitrate? Outcome # 2) DOK 1) Paired item 1)

A) PdNO₃)₂
B) PbNO₃)
C) PbNO₃)₂

Question 9

Elements in group 17 are considered _____________. Outcome # 1,2) DOK 1

A) alkali Metals
B) halogens
C) noble Gases

Question 10

Isotopes of carbon differ with respect to the number of _________. Outcome # 1,8) DOK 1

A) protons
B) neutrons
C) electrons

Question 11

What is the correct formula for acetic acid? Outcome # 2) DOK 1)

A) CH₃CO₂H
B) CH₃CO₂^-
C) CH₃CO₂H₂

Question 12

In mass spectrometry, species are separated based off their _____? Outcome # 7) DOK 2)

A) mass-to-charge ratio
B) mass
C) charge

Question 13

Which statement is correct about chlorine-35 and chorine-37? Outcome # 8) DOK 1)

A) They have the same number of protons and electrons, but a different number of neutrons.
B) They have a different number of protons and electrons, but the same number of neutrons.
C) They have the same number of protons, but a different number of electrons and neutrons.

Question 14

What is the name for ironIII) chloride? Outcome # 2) DOK 1)

A) FeCl₂
B) FeCl₃
C) FeCl₄

Question 15

What is the correct name for the precipitate formed when mixing potassium carbonate and nickelII) chloride? Outcome # 2) DOK 2)

A) potassium chloride
B) nickelII) carbonate
C) nickelIII) carbonate

Question 16

Where would you expect to find a stored bottle of HCl in the laboratory? Outcome # 5) DOK 1)

A) in the storage cabinet labeled strong bases
B) in the storage cabinet labeled strong acids
C) in the storage cabinet labeled solvents

Question 17

Which elements are considered noble gases? Outcome # 2) DOK 1)

A) He, Ne, Ar
B) H, N, O
C) F, Cl, Br

Question 18

Where would you expect to find a stored bottle of NaOH in the laboratory? Outcome # 5) DOK 1) Paired item 1)

A) in the storage cabinet labeled strong bases
B) in the storage cabinet labeled strong acids
C) in the storage cabinet labeled solvents

Question 19

What is the overall charge on a sulfate ion? Outcome # 8) DOK 1)

A) 0
B) -1
C) -2

Question 20

Which of the following would be considered a caustic base? Outcome # 5) DOK 1)

A) HNO₃
B) H₂SO₄
C) NaOH

Question 21

Which list of elements contains ONLY nonmetals? Outcome # 1,9) DOK 1)

A) helium, carbon, gold
B) sodium, chromium, copper
C) phosphorus, nitrogen, oxygen

Question 22

Which of the following elements form +2 ions? Outcome # 9) DOK 1)

A) strontium, magnesium, calcium
B) lithium, sodium, potassium
C) sodium, magnesium, aluminum

Question 23

What is the overall charge on a phosphate ion? Outcome # 8) DOK 1)

A) -2
B) -3
C) -1

Question 24

Which of the following would be considered a corrosive acid? Outcome # 5) DOK 1)

A) HNO₃
B) NaOH
C) KOH

Question 25

Which of the following is not a correct element name-symbol combination? Outcome # 1,9) DOK 1)

A) copper, Cu
B) arsenic, Ar
C) gold, Au

Question 26

The Greek philosopher Democritus phrased what word for a tiny piece of matter that cannot be divided? Outcome # 1,9) DOK 1)

A) element
B) atom
C) electron

Question 27

Who provided evidence for the existence of a nucleus in an atom? Outcome # 1,9) DOK 1)

A) John Dalton
B) J.J. Thomson
C) Ernest Rutherford

Question 28

How many neutrons are in carbon-12? Outcome # 9) DOK 1)

A) 6
B) 7
C) 8

Question 29

The number of protons in one atom of an element is that element's __________. Outcome # 1,9) DOK 1)

A) mass number
B) atomic mass
C) atomic number

Question 30

The fact that LiBr is 7.99 % lithium and 92.01 % bromine by mass regardless of its origin is an example of _____. Outcome # 9) DOK 1)

A) law of definite proportions
B) law of conservation of mass
C) Dalton's atomic theory

Question 31

Structural isomers are considered molecules with the same ____________. Outcome # 1,9) DOK 2)

A) kinds and number of atoms but a different arrangement of these atoms
B) number of electrons and protons but a different number of neutrons
C) molecular formula but with a different overall charge

Question 32

Which of the following is an ionic compound? Outcome # 1,9) DOK 1)

A) CO
B) HCl
C) Na₂O

Question 33

Within the nucleus, the positive charge is __________. Outcome # 1,9) DOK 2)

A) concentrated in the center of an atom
B) spread evenly throughout an atom
C) concentrated at multiple sites in an atom

Question 34

How many neutrons are in chlorine-37? Outcome # 9) DOK 1)

A) 18
B) 20
C) 18.5

Question 35

To calculate the number of neutrons in an atom, you would subtract Outcome # 1,9) DOK 1)

A) mass number from atomic number
B) atomic number from mass number
C) atomic number from electron number

Question 36

Using the periodic table, what is the atomic number of argon? Outcome # 1,9) DOK 2)

A) 26.98
B) 13
C) 18

Question 37

Which statement about subatomic particles is NOT true? Outcome # 1,9) DOK 2)

A) Protons and neutrons have almost the same mass.
B) Protons and electrons have opposite charges.
C) Protons and neutrons have the same charge

Question 38

The formula for potassium cyanide is KCN and the formula for calcium fluoride is CaF₂. What is the formula for calcium cyanide? Outcome # 1,7,8,9) DOK 2)

A) Ca₂CN
B) CaCN
C) CaCN)₂

Question 39

Isotopes of carbon differ with respect to the number of _________. Outcome # 1,9) DOK 1)

A) protons
B) neutrons
C) electrons

Question 40

Which of the following elements form +1 ions? Outcome # 9) DOK 1)

A) strontium, magnesium, calcium
B) lithium, sodium, potassium
C) sodium, magnesium, aluminum

Question 41

What is a cation? Outcome # 7) DOK 1)

A) A cation is defined as an atom that has lost electrons and forms a positive charge.
B) A cation is defined as an atom that has gained electrons and forms a negative charge.
C) A cation is defined as an atom that has gained electrons and forms a positive charge.

Question 42

Lanthanum atom is located in which block on the periodic table? Outcome # 7) DOK 1)

A) p-block
B) d-block
C) f-block

Question 43

The chemical symbol for cobalt is _____. Outcome # 7) DOK 1)

A) Co
B) cO
C) CO

Question 44

What is the name of Fe₂O₃? Outcome # 8) DOK 2)

A) ironII) oxide
B) ironIII) oxide
C) ironIV) oxide

Question 45

Which element is represented by the chemical symbol Th? Outcome # 7) DOK 1)

A) thallium
B) thorium
C) tantalum

Question 46

What is an anion? Outcome # 7) DOK 1)

A) An anion is defined as an atom that has lost electrons and forms a negative charge.
B) An anion is defined as an atom that has gained electrons and forms a negative charge.
C) An anion is defined as an atom that has gained electrons and forms a positive charge.

Question 47

Hafnium atom is located in which block on the periodic table? Outcome # 7) DOK 1)

A) p-block
B) d-block
C) f-block

Question 48

What is the correct formula for iodine monochloride? Outcome # 8) DOK 2)

A) ICl₂
B) I₂Cl
C) ICl

Question 49

What is the correct formula for cobaltIII) chloride? Outcome # 8) DOK 2)

A) CoCl₂
B) CoCl₃
C) Co₃Cl

Question 50

Which element is represented by the chemical symbol Tl? Outcome # 7) DOK 1)

A) tantalum
B) thallium
C) thorium

Question 51

Identify the chalcogen that has 18 neutrons in the nucleus. Outcome # 9) DOK 2)

A) sulfur-32
B) sulfur-33
C) sulfur-34

Question 52

Determine the formula for copperII) nitrate. Outcome # 8) DOK 2)

A) Cu₂NO₃
B) CuNO₃
C) CuNO₃)₂

Question 53

What is the chemical symbol for manganese? Outcome # 7) DOK 1)

A) Mn
B) Mg
C) mn