Chemistry Chapter 8
What is the maximum number of electrons that can be accommodated in the n=2 shell?
8
An atom of which of the following elements has the largest first ionization energy? A. Ca B. Rb C. Ge D. Cl E. P
Cl
The change in energy for which fo the following processes corresponds to the electron affinity of iodine?
I(g) + e⁻ ---> I⁻(g)
Which of the following statements is true concerning a concentrated solution of lithium oxide in water?
The resulting solution is strongly basic
Which of the following atoms is paramagnetic in its ground state?
Tin (Sn)
Which elements forms the most acidic oxide?
B
An atom of which of the following elements has the most negative electron affinity?
Cl
An atom of which of the following elements has the largest atomic radius? A. Ge B. K C. Cl D. Ca E. As
K
An atom of which of the following elements has the largest first ionization energy? A. N B. Sb C. As D. P E. Bi
N
An atom of which of the following elements has the smallest first ionization energy? A. Sn B. Pb C. Ge D. C E. Si
Pb
Which of the following statements is incorrect?
The building-up principle states that electrons are added to atoms in order of increasing principal quantum number
The elements that are filling the 5f subshell are called?
actinides
The ground-state valence-shell configuration of a particular atom is 5f¹⁴6d¹7s². The element to which this atom belongs is a
transition element
An atom of which of the following elements has the highest fourth ionization energy? A. Al B. Se C. Si D. Ga E. As
Al
According to the general trend in electron affinities, which group (or family) of elements tend to form the most table anions in the gas phase?
Halogens
Which principle or rule is violated by the following orbital diagram of an atom in its ground state?
Pauli exclusion principle
Which of the following species would be expected to have chemical properties most similar to those of the nitrogen atom?
Phosphorus atom
The angular momentum quantum number of the two highest-energy valence electrons in an atom of germanium is?
1
What is the total number of electrons in p orbitals in a ground-state vanadium atom?
12
The maximum number of electrons that can be accommodated in an F subshell is
14
What is the ground-state electron configuration of tantalum (Ta)?
1s²2s²2p⁶3s²3p⁶3d¹⁰4s²4p⁶4d¹⁰4f¹⁴5s²5p⁶5d³6s²
What is the ground-state electron configuration of terbium (Tb)?
1s²2s²2p⁶3s²3p⁶3d¹⁰4s²4p⁶4f⁹5s²5p⁶6s²
Which of the following electron configurations corresponds to the ground state of an atom of a transition element?
1s²2s²2p⁶3s²3p⁶3d⁶4s²
Which of the following ground-state electron configurations corresponds to an atom that has the most negative value of the electron affinity?
1s²2s²sp⁶3s²3p⁵
Which of the following electron configurations is impossible, according to the Pauli exclusion principle?
1s²2s⁵
If the electron could have a third spin state, what would be the ground-state configuration of carbon?
1s³2s³
How many unpaired electrons are found in the ground state electron configuration of selenium (Se)?
2
What is the maximum number of electrons in an atom that have the set of quantum numbers n=1 and L=0?
2
What is the maximum number of electrons that can occupy one p orbital?
2
Which of the following orbital diagrams represent(s) a paramagnetic atom? Out of 1,2,3
2 and 3
Fe has __ that is(are) unpaired in its d orbitals
4 electrons
Which of the following orbital occupancy designations is incorrect?
4f¹⁵
According to the building-up principle or aufbau principle, which subshell is typically filled next after the 3d subshell?
4p
What is the valence-shell electron configuration for the fourth-period element in group VA?
4s²4p³
How many valence electrons does an arsenic atom have?
5
Which of the following sets of 4 quantum numbers correctly describes an electron occupying a d orbital of an element in the 3rd row of the transition metals?
5,2,1,-1/2
Which of the following sets of four quantum numbers correctly describes one of the valence electrons in a ground-state radium atom?
7,0,0,+1/2
Which of the following orbital diagrams represents a diamagnetic atom?
A
Which of the following statements is incorrect?
All elements in the n=4 period have a partially or completely filled n=4 shell
Which of the following statements concerning the periodic table is incorrect?
All the elements are arranged in order of increasing atomic weight
The change in energy for which of the following processes corresponds to the second ionization energy of barium?
Ba⁺(g) ---> Ba²⁺ + e⁻
An atom of which of the following elements has the largest atomic radius? A. As B. Sb C. P D. Bi E. N
Bi
An element that has the same ground state valence-shell electron configuration as indium is?
Boron
Which of the following forms that most stable anion in the gas phase?
Br (electron affinity= -325 kJ/mol)
The change in energy for which of the following processes represents the first ionization energy of bromine?
Br(g) ---> Br⁺(g) + e⁻
Which principle or rule is violated by the following orbital diagram of an atom in its ground state? **2s orbital is empty
Building-up principle
The change in energy for which of the following processes correspond to the first ionization energy of calcium?
Ca(G)---> Ca⁺(g) + e⁻
Which of the following elements would be expected to have chemical and physical properties most similar to those of the bromine (Br)?
Chlorine (Cl)
An atom of which of the following elements has the smallest atomic radius? A. Cl B. Rb C. Ca D. Si E. As
Cl
When arranged in order of increasing atomic number, the elements exhibit periodicity for all the following properties except?
Color
Which of the following orbital diagrams violates the Pauli exclusion principle?
D **fills all shells
Who was the first chemist to recognize patterns in chemical properties of the elements?
Dobereiner
Which of the following orbital diagrams represents a paramagnetic atom?
E **1 electron in the second and third 2p shell
An atom of which of the following elements has the smallest atomic radius? A. At B. F C. I D. Br E. Cl
F
Which ground-state electron configuration is incorrect?
Fe:[Ar]3d⁵
Which of the following have one or more filled d subtle in their ground state electron configuration?
Ga
Two elements that have the same ground-state valence shell configuration of ns²np² are?
Ge and Pb
Which of the following are incorrectly paired
Group IVA, halogens
Which element is found in the s-block of the periodic table?
H
The statement that "the lowest-energy configuration for an atom is the one having the maximum number of unpaired electrons allowed by the Pauli principle in a particular set of degenerate orbitals" is known as?
Hund's rule
Which principle or rule is violated by the following orbital diagram of an atom in its ground state? ** the second 2p orbital is empty
Hund's rule
The element selenium is in the same group as sulfur. Which of the following is the formula for selenium acid?
H₂SeO₃
The element antimony is in the same group as phosphorus. Which of the following is the formula of antinomies acid?
H₃SbO₄
An atom of which of the following elements has the largest ionization energy? A. Te B. Sn C. Sb D. I E. Rb
I
An atom of which of the following elements has the smallest atomic radius? A. Sb B. I C. Te D. Rb E. Sn
I
The statement that the first ionization energy for an oxygen atom is lower than the first ionization energy for a nitrogen atom is?
Inconsistent with the general trend relating changes in ionization energy across a period from left to right and due to the fact that oxygen has one doubly occupied 2p orbital and nitrogen does not
Which of the following properties, in general, increases from left to right across a period in the periodic table?
Ionization energy
Which of the following statements is true concerning the electron configuration [Ne]3s¹3p¹?
It may represent an excited-state electron configuration of a Mg atom
Which of the following statements is true about the ionization energy of Mg⁺?
It will be equal to and opposite in sign to the electron affinity of Mg²⁺
Rank the following atoms in order of the largest to smallest atomic radius: Al, P, Cl, K
K>Al>P>Cl
An atom of which of the following elements has the largest atomic radius? A. Cl B. P C. Na D. S E. Si
Na
An atom of which of the following elements has the largest second ionization energy? A. Na B. Cl C. S D. Si E. Mg
Na
The Pauli exclusion principle states that
No 2 electrons in the same atom can have the same set of four quantum numbers
Rank the following ions in order of increasing first ionization energy: O²⁻, Mg²⁺, F⁻, Na⁺
O²⁻<F⁻<Na⁺<Mg²⁺
Which of the following electron configurations represents an excited state of the indicated atom?
P: 1s²2s²2p⁶3s²3p²4s¹
The element whose atoms in the ground state have 2 half-filled orbitals is
Po
An atom of which of the following elements is not diamagnetic in the ground state?
Pt
An atom of which of the following elements has the smallest first ionization energy? A. Rb B. Si C. F D. As E. Ca
Rb
An atom of which of the following elements has the smallest ionization energy? A. I B. Sb C. Sn D. Rb E. Te
Rb
An unknown element, X, reacts with oxygen to form two oxides with the general formula X₂O₃ and X₂O₅. The pure element is strongly paramagnetic, and the oxides are amphoteric. Which of the following elements could be represented by X?
Sb
In which of the series of elements listed below would the elements have most nearly the same atomic radius?
Sc, Ti, V, Cr
Which of the following statements is true?
The krypton 1s orbital is smaller than the helium 1s orbital because krypton's nuclear charge draws the electrons closer
Which of the following statements is true concerning the electron configuration [Kr]5p²?
This configuration cannot be the ground-state electron configuration for a Sr atom because it violates the Aufbau principle
A few atoms of the new element 113 were created in 2004 by a team of Russian and American scientists. It has been given the temporary name "ununtrium" and a temporary symbol "Uut". Based on ununtrium's position on the periodic table, what types of oxide(s) should it form?
Ununtrium should form two basic oxides having the formulas Uut₂O and Uut₂O₃
All of the following ground-state electron configurations are correct except?
V:[Ar]4s²4d³
A section of the periodic table with all identification features removed is shown below: Which element has the smallest atomic radius?
X
Below are data on the first four ionization energies for the fictitious element X First ionization energy= 500kJ/mol Second ionization energy= 2000kJ/mol Third ionization energy= 3500 kJ/mol Fourth ionization energy= 25000 kJ/mol From the data, which of the following statements is incorrect?
X could belong to the group VA
Which of the following may represent an excited-state electron configuration for a cobalt atom?
[Ar]3d⁸4s¹
What is the ground-state electron configuration of sulfur (S)?
[Ne]3s²3p⁴
Which of the following ground-state electron configurations corresponds to an atom having the largest ionization energy?
[Ne]3s²3p₃
What noble gas core would be used when writing the ground state electron configuration for tungsten (W)?
[Xe]
The electron affinity value expected for the process Cl(g) + e⁻---> Cl⁻(g) would be
a large negative number
The ground-state valence-shell configuration of a particular atom is 5s²4d⁵. This valence-shell electron configuration identifies the atom as
a transition element
In general, atomic radii
decrease from left to right in a period and increase down a group
Sodium and potassium have similar chemical and physical properties. This is best explained by the fact that both elements
have the same ground-state valence-electron configuration
The ground-state valence-shell configuration of a particular atom is 4d¹⁰5s²5p₁. The element to which this atom belongs is a
p-block main-group element
The quantum number of an atom's highest-energy valence electrons are n=5 and l=1. The element to which this atom belongs could be a
p-block main-group element
The ground-state electron configuration of a Cr²⁺ ion is 1s²2s²2p⁶3s²3p⁶3d⁴. Therefore Cr²⁺ is
paramagnetic with four unpaired electrons
