Questão 1
Questão
Select the type of subshell that can hold the most electrons.
Questão 2
Questão
How many electrons are in the 3p subshell of a phosphorus atom?
Questão 3
Questão
What is the ground-state electron configuration of aluminum?
Responda
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1s2 2s2 2s1
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1s2 2s1 2p6 3s2
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1s2 2s2 2p6 3s2 3p0
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1s2 2s2 2p6 3s2 3p1
Questão 4
Questão
Select the quantum number that describes the type of subshell (s, p, d, or f) that an electron occupies.
Questão 5
Questão
How many valence electrons are in an atom of a group of 16 element?
Responda
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three
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four
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five
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six
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seven
Questão 6
Questão
Select the valence electron configuration of a group 2 element.
Responda
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ns2
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ns1
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ns2 np6
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ns2 np5
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ns2 np7
Questão 7
Questão
Which of these ions has the largest ionic radius?
Questão 8
Questão
Which of these elements has the highest first ionization energy?
Questão 9
Questão
Which of these compounds would be expected to have the greatest attraction between ions?
Questão 10
Questão
As you move toward the top right corner of the periodic table atomic radius-
Responda
-
and first ionization energy both increase.
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and first ionization energy both decrease.
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decreases and first ionization energy increases.
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increases and first ionization energy decreases.
Questão 11
Questão
Among the given choices, which of these elements has the higher ionization energy.
Questão 12
Questão
Among the given choices, which of these elements has the higher ionization energy?
Questão 13
Questão
Among the given choices, which of these elements has the lower electron affinity?
Questão 14
Questão
Among the given choices, which of these elements has the lower electron affinity?
Questão 15
Questão
Among the given choices, which of these elements has the lower affinity?
Questão 16
Questão
Select the type of subshell that can hold the most electrons.
Questão 17
Questão
Select the set of quantum numbers that is NOT permitted.
Responda
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n=2, l=1, ml=1, ms=+1/2
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n=3, l=0, ml=1, ms=+1/2
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n=1, l=0, ml=0, ms=-1/2
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n=4, l=3, ml=3, ms=-1/2
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n=3, l=3, ml=2, ms=+1/2
Questão 18
Questão
According to the VSEPR theory, what formula should be for SF4?
Questão 19
Questão
Predict the molecular geometry for a molecule with two bonded groups and two lone pairs.
Responda
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linear
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bent
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trigonal planar
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tetrahedral
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trigonal bipyramidal
Questão 20
Questão
Identify the number of sigma and pi bonds in the CS2 molecule.
S=C=S
Responda
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1 sigma bond; 1 pi bond
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0 sigma bonds; 2 pi bonds
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2 sigma bonds; 2 pi bonds
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2 sigma bonds; 0 pi bonds
Questão 21
Questão
Predict the molecular geometry for the SeF4 molecule.
Responda
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tetrahedral
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trigonal bypyramidal
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seesaw
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square pyramidal
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square planar
Questão 22
Questão
Determine the molecular geometry for PH3.
Responda
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linear
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bent
-
trigonal planar
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trigonal pyramidal
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tetrahedral
Questão 23
Questão
Which of these molecules is linear?
Questão 24
Questão
Select the nonpolar molecule.
Questão 25
Questão
How many unshared electrons (lone pairs) are in CHCl3 (chloroform) molecule?
Questão 26
Questão
How many unshared electrons (lone pairs) are in NF3 molecule?
Questão 27
Questão
What are the formal charges of C and O, respectively in carbon monoxide?
Questão 28
Questão
Which of these molecules is likely to be an exception to the octet rule?
Questão 29
Questão
Which Lewis structure uses an expanded octet?
Questão 30
Questão
What is the formal charge on chlorine in the chlorite ion, ClO2-?
Questão 31
Questão
Determine the formal charge on central atom in the ICl4 molecule.
Questão 32
Questão
What is the molecular geometry of BrF3?
Responda
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T-shaped
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Trigonal planar
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trigonal pyramidal
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seesaw
Questão 33
Questão
Consider the given lewis structure of PF5. What is the geometry of this molecule?
Responda
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trigonal bipyramidal
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octahedral
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square pyramidal
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trigonal pyranidal
Questão 34
Questão
Determine the total number of valence electrons in bromide pentafluoride, BrF5.
Questão 35
Questão
What is the molecular shape of BF3?
Responda
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linear
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bent
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trigonal planar
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trigonal pyramidal
Questão 36
Questão
Among the four Alkali metal Iodides LiI, NaI, KI, and RbI, which iodide has the highest lattice energy?