Question 1

In the ground state of an atom of silver (Ag) , how many electrons will there be with the quantum number l = 1? (The n, ml, and ms quantum numbers may have any appropriate values.)

Accepted Answer

A)  9
B)  12
C)  18
D)  24
E)  36F) B) and D)
G) B) and C)

Question 2

Bigger atoms generally have smaller ionization energies.

Accepted Answer

A) True 
 B)False

Question 3

The most basic oxides are formed from elements found in the __________ region of the periodic table.

Accepted Answer

A)  upper right
B)  upper left
C)  center
D)  lower right
E)  lower leftF) C) and D)
G) B) and E)

Question 4

In many-electron atoms, which quantum numbers specify the energy of an electron?

Accepted Answer

A)  n and l
B)  n and ml
C)  l and ml
D)  n and ms
E)  n, l, and mlF) B) and D)
G) A) and B)

Question 5

An atom of element number 33 (As)  is in its ground electronic state. Which one of the following sets quantum numbers could not apply to any of its electrons?

Accepted Answer

A)  n = 2 l = 1 ml = −1 ms = +½
B)  n = 3 l = 0 ml = 0 ms = −½
C)  n = 3 l = 2 ml = −2 ms = −½
D)  n = 4 l = 0 ml = 0 ms = −½
E)  n = 4 l = 2 ml = 1 ms = +½F) C) and E)
G) A) and B)

Question 6

First ionization energies of neutral atoms may be positive or negative.

Accepted Answer

A) True 
 B)False

Question 7

Which of the following elements has the smallest atomic size?

Accepted Answer

A)  Na
B)  Ar
C)  K
D)  Ca
E)  KrF) D) and E)
G) A) and B)

Question 8

The effective nuclear charge for an atom is less than the actual nuclear charge due to

Accepted Answer

A)  shielding.
B)  penetration.
C)  paramagnetism.
D)  electron-pair repulsion.
E)  relativity.F) C) and D)
G) A) and E)

Question 9

The electronic structure 1s22s22p63s23p64s23d8 refers to the ground state of

Accepted Answer

A)  Kr.
B)  Ni.
C)  Fe.
D)  Pd.
E)  None of these choices are correct.F) C) and E)
G) A) and C)

Question 10

Which one of the following equations correctly represents the process involved in the electron affinity of X?

Accepted Answer

A)  X( g) → X +( g) + e −
B)  X +( g) → X +( aq) 
C)  X +( g) + e − → X( g) 
D)  X( g) + e − → X −( g) 
E)  X +( g) + Y −( g) → XY( s) F) All of the above
G) A) and B)

Question 11

Which of the following elements has the largest atomic size?

Accepted Answer

A)  S
B)  Ca
C)  Ba
D)  Po
E)  RnF) None of the above
G) B) and E)

Question 12

In moving down a group in the periodic table, the oxides of the elements become more acidic in nature.

Accepted Answer

A) True 
 B)False

Question 13

Which of the following atoms will be diamagnetic?

Accepted Answer

A)  Cr
B)  Ru
C)  Fe
D)  Pt
E)  CdF) A) and D)
G) B) and E)

Question 14

Which of the following electron configurations is correct for the excited state of an element?

Accepted Answer

A)  [He]2 s 22 p 5
B)  [Ne]3 s 23 p 1
C)  [Ar]4 s 14 p 1
D)  [Kr]5 s 24 d 7
E)  [He]1 p 1F) A) and D)
G) C) and E)

Question 15

Select the correct electron configuration for sulfur (Z = 16) .

Accepted Answer

A)  1 s 21 p 62 s 22 p 6
B)  1 s 22 s 22 p 83 s 23 p 4
C)  1 s 22 s 22 p 83 s 23 p 2
D)  1 s 22 s 22 p 63 s 23 p 4
E)  1 s 22 s 22 p 63 s 23 d 4F) A) and B)
G) C) and D)

Question 16

Which of the following electron configurations is impossible?

Accepted Answer

A)  1 s 22 s 22 p 63 s 23 p 4
B)  1 s 22 s 22 p 53 s 13 p 4
C)  1 s 22 s 22p 63 s 23 p 63 d 104 s 2
D)  1 s 22 s 22 p 63 s 33 p 4
E)  1 s 12 s 22 p 63 s 23 p 4F) A) and B)
G) None of the above

Question 17

In Mendeleev's version of the periodic table, the elements were arranged in order of increasing atomic number.

Accepted Answer

A) True 
 B)False

Question 18

How many valence electrons are there in an atom with the electron configuration [noble gas]ns2(n −1) d10np3?

Accepted Answer

A)  2
B)  3
C)  5
D)  10
E)  15F) B) and D)
G) A) and E)

Question 19

In neutral atoms, the 3d orbitals have higher energy than the 4s orbitals.

Accepted Answer

A) True 
 B)False

Question 20

Select the most acidic compound from the following.

Accepted Answer

A)  SO 2
B)  Al 2O 3
C)  CaO
D)  PbO
E)  H 2OF) A) and E)
G) A) and D)

Exam 8: Electron Configuration and Chemical Periodicity

In neutral atoms, the 3d orbitals have higher energy than the 4s orbitals.

Correct AnswerverifiedShow Answer

Which of the following elements has the largest atomic size?

Correct AnswerverifiedShow Answer

The most basic oxides are formed from elements found in the __________ region of the periodic table.

Correct AnswerverifiedShow Answer

Which of the following atoms will be diamagnetic?

Correct AnswerverifiedShow Answer

The effective nuclear charge for an atom is less than the actual nuclear charge due to

Correct AnswerverifiedShow Answer

In Mendeleev's version of the periodic table, the elements were arranged in order of increasing atomic number.

Correct AnswerverifiedShow Answer

First ionization energies of neutral atoms may be positive or negative.

Correct AnswerverifiedShow Answer

Select the correct electron configuration for sulfur (Z = 16) .

Correct AnswerverifiedShow Answer

An atom of element number 33 (As) is in its ground electronic state. Which one of the following sets quantum numbers could not apply to any of its electrons?

Correct AnswerverifiedShow Answer

Which of the following electron configurations is correct for the excited state of an element?

Correct AnswerverifiedShow Answer

In many-electron atoms, which quantum numbers specify the energy of an electron?

Correct AnswerverifiedShow Answer

The electronic structure 1s22s22p63s23p64s23d8 refers to the ground state of

Correct AnswerverifiedShow Answer

Which of the following electron configurations is impossible?

Correct AnswerverifiedShow Answer

Bigger atoms generally have smaller ionization energies.

Correct AnswerverifiedShow Answer

Which one of the following equations correctly represents the process involved in the electron affinity of X?

Correct AnswerverifiedShow Answer

Select the most acidic compound from the following.

Correct AnswerverifiedShow Answer

How many valence electrons are there in an atom with the electron configuration [noble gas]ns2(n −1) d10np3?

Correct AnswerverifiedShow Answer

In moving down a group in the periodic table, the oxides of the elements become more acidic in nature.

Correct AnswerverifiedShow Answer

In the ground state of an atom of silver (Ag) , how many electrons will there be with the quantum number l = 1? (The n, ml, and ms quantum numbers may have any appropriate values.)

Correct AnswerverifiedShow Answer

Which of the following elements has the smallest atomic size?

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

The electronic structure 1s²2s²2p⁶3s²3p⁶4s²3d⁸refers to the ground state of

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

How many valence electrons are there in an atom with the electron configuration [noble gas]ns²(n −1) d¹⁰np³?

Correct Answer
verified

Correct Answer
verified

In the ground state of an atom of silver (Ag) , how many electrons will there be with the quantum number l = 1? (The n, m_l, and m_s quantum numbers may have any appropriate values.)

Correct Answer
verified

Correct Answer
verified