Question 1

The complete electron configuration of tin is

Accepted Answer

A) 1s22s22p63s23p64s23d104p65s24d105d105p2 
B) 1s22s22p63s23p64s23d104d104p2 
C) 1s22s22p63s23p64s24p65s24d105d105p2 
D) 1s22s22p63s23p64s23d104p65s24d105p2 
E) none of these 
A) 1s22s22p63s23p64s23d104p65s24d105d105p2 
B) 1s22s22p63s23p64s23d104d104p2 
C) 1s22s22p63s23p64s24p65s24d105d105p2 
D) 1s22s22p63s23p64s23d104p65s24d105p2 
E) none of these

Question 2

All alkaline earths have the following number of valence electrons:

Accepted Answer

A) 1 
B) 3 
C) 6 
D) 2 
E) none of these 
A) 1 
B) 3 
C) 6 
D) 2 
E) none of these

Question 3

Given the following electronic configuration of neutral atoms,identify the element and state the number of unpaired electrons in its ground state:
-[Ar]4s13d5

Accepted Answer

The element is Cr wi

Question 4

Given the following electronic configuration of neutral atoms,identify the element and state the number of unpaired electrons in its ground state:
-[He]2s22p3

Accepted Answer

The element is N wit

Question 5

A given set of p orbitals consists of ______ orbitals.

Accepted Answer

A) 1 
B) 2 
C) 3 
D) 4 
E) 5 
A) 1 
B) 2 
C) 3 
D) 4 
E) 5

Question 6

The first ionization energy of Mg is 735 kJ/mol.The second ionization energy is

Accepted Answer

A) 735 kJ/mol 
B) less than 735 kJ/mol 
C) greater than 735 kJ/mol 
D) More information is needed to answer this question. 
E) None of these. 
A) 735 kJ/mol 
B) less than 735 kJ/mol 
C) greater than 735 kJ/mol 
D) More information is needed to answer this question. 
E) None of these.

Question 7

Choose the atom or ion using a periodic table.
-Larger atomic radius,N or O

Accepted Answer

The answer of Choose the atom or ion using a...

Question 8

A hydrogen 3s wave function has __________ (how many?)nodal planes and __________ (how many?)radial nodes (not counting r = 0).

Accepted Answer

0 nodal planes and 2 radial no

Question 9

The energy of the light emitted when a hydrogen electron goes from n = 2 to n = 1 is what fraction of its ground-state ionization energy?

Accepted Answer

A) 3/4 
B) 1/2 
C) 1/4 
D) 1/8 
E) 1/9 
A) 3/4 
B) 1/2 
C) 1/4 
D) 1/8 
E) 1/9

Question 10

Ionization energy increases with an increasing number of electrons.

Accepted Answer

A) True 
 B)False

Question 11

How many f orbitals have the value n = 3?

Accepted Answer

A) 0 
B) 3 
C) 5 
D) 7 
E) 1 
A) 0 
B) 3 
C) 5 
D) 7 
E) 1

Question 12

Which of the following frequencies corresponds to light with the longest wavelength?

Accepted Answer

A) 3.00 $\times$ 1013 s-1 
B) 4.12 $\times$ 105 s-1 
C) 8.50 $\times$ 1020 s-1 
D) 9.12 $\times$ 1012 s-1 
E) 3.20 $\times$ 109 s-1 
A) 3.00 $\times$ 1013 s-1 
B) 4.12 $\times$ 105 s-1 
C) 8.50 $\times$ 1020 s-1 
D) 9.12 $\times$ 1012 s-1 
E) 3.20 $\times$ 109 s-1

Question 13

Which of the following was not an elemental property usually predicted by Mendeleev for as-yet-unknown elements?

Accepted Answer

A) electron configuration 
B) atomic mass 
C) density 
D) boiling point 
E) oxide formula 
A) electron configuration 
B) atomic mass 
C) density 
D) boiling point 
E) oxide formula

Question 14

Which of the following is incorrect?

Accepted Answer

A) The emission spectrum of hydrogen contains a continuum of colors. 
B) Diffraction produces both constructive and destructive interference. 
C) All matter displays both particle and wavelike characteristics. 
D) Niels Bohr developed a quantum model for the hydrogen atom. 
E) The lowest possible energy state of a molecule or atom is called its ground state. 
A) The emission spectrum of hydrogen contains a continuum of colors. 
B) Diffraction produces both constructive and destructive interference. 
C) All matter displays both particle and wavelike characteristics. 
D) Niels Bohr developed a quantum model for the hydrogen atom. 
E) The lowest possible energy state of a molecule or atom is called its ground state.

Question 15

For which of the following elements does the electron configuration for the lowest energy state show a partially filled d orbital?

Accepted Answer

A) Ti 
B) Rb 
C) Cu 
D) Ga 
E) Kr 
A) Ti 
B) Rb 
C) Cu 
D) Ga 
E) Kr

Question 16

How many electrons can be described by the quantum numbers n = 3,l = 3,ml = 1?

Accepted Answer

A) 0 
B) 2 
C) 6 
D) 10 
E) 14 
A) 0 
B) 2 
C) 6 
D) 10 
E) 14

Question 17

Choose the element with the highest ionization energy.

Accepted Answer

A) Na 
B) Mg 
C) Al 
D) P 
E) S 
A) Na 
B) Mg 
C) Al 
D) P 
E) S

Question 18

Areas of zero probability of finding an electron are called _________.

Accepted Answer

nodes (or

Question 19

Which of the following atoms would have the largest second ionization energy?

Accepted Answer

A) Mg 
B) Cl 
C) S 
D) Ca 
E) Na 
A) Mg 
B) Cl 
C) S 
D) Ca 
E) Na

Question 20

The ____________ states that in a given atom no two electrons can have the same set of four quantum numbers.

Accepted Answer

Pauli excl

Exam 7: Atomic Structure and Periodicity

The complete electron configuration of tin is

All alkaline earths have the following number of valence electrons:

Given the following electronic configuration of neutral atoms,identify the element and state the number of unpaired electrons in its ground state: -[Ar]4s13d5

Given the following electronic configuration of neutral atoms,identify the element and state the number of unpaired electrons in its ground state: -[He]2s22p3

A given set of p orbitals consists of ______ orbitals.

The first ionization energy of Mg is 735 kJ/mol.The second ionization energy is

Choose the atom or ion using a periodic table. -Larger atomic radius,N or O

A hydrogen 3s wave function has __________ (how many?)nodal planes and __________ (how many?)radial nodes (not counting r = 0).

The energy of the light emitted when a hydrogen electron goes from n = 2 to n = 1 is what fraction of its ground-state ionization energy?

Ionization energy increases with an increasing number of electrons.

How many f orbitals have the value n = 3?

Which of the following frequencies corresponds to light with the longest wavelength?

Which of the following was not an elemental property usually predicted by Mendeleev for as-yet-unknown elements?

Which of the following is incorrect?

For which of the following elements does the electron configuration for the lowest energy state show a partially filled d orbital?

How many electrons can be described by the quantum numbers n = 3,l = 3,ml = 1?

Choose the element with the highest ionization energy.

Areas of zero probability of finding an electron are called _________.

Which of the following atoms would have the largest second ionization energy?

The ____________ states that in a given atom no two electrons can have the same set of four quantum numbers.

Chemical Foundations

Atoms, molecules, and Ions

Stoichiometry

Chemical Reactions and Solutions Stoichiometry

Gases

Thermochemistry

Bonding: General Concepts

Covalent Bonding: Orbitals

Liquids and Solids

Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Acid-Base Equilibria

Solubility and Complex Ion Equilibria

Spontaneity, entropy, and Free Energy

Electrochemistry

The Nucleus: a Chemists View

The Representative Elements

Transition Metals and Coordination Chemistry

Organic and Biological Molecules

Filters

Given the following electronic configuration of neutral atoms,identify the element and state the number of unpaired electrons in its ground state: -[Ar]4s¹3d⁵

Given the following electronic configuration of neutral atoms,identify the element and state the number of unpaired electrons in its ground state: -[He]2s²2p³

A hydrogen 3s wave function has (how many?)nodal planes and (how many?)radial nodes (not counting r = 0).

How many electrons can be described by the quantum numbers n = 3,l = 3,m_l = 1?