Question 1

Which of the following elements is a lanthanide?

Accepted Answer

A)  Ce 
B)  Na 
C)  U 
D)  Ar 
E)  Rg 
A)  Ce 
B)  Na 
C)  U 
D)  Ar 
E)  Rg A

Question 2

Define ionization energy.

Accepted Answer

Ionization energy is the energy required to remove an electron from an ion or an atom.

Question 3

Match between columns
                        Premises: core electrons
carbon
number of unpaired electrons in Ti²+
magnesium
potassium
0
silicon
iron
valence electrons
number of unpaired electrons in Na

Accepted Answer

The Answer of Mg and 2 and number of unpaired is...

Question 4

Give the ground state electron configuration for Br⁻.

Accepted Answer

A)  [Ar]4s23d104p6 
B)  [Ar]4s23d104p5 
C)  [Ar]4s24p6 
D)  [Ar]4s24d104p6 
E)  [Ar]4s23d104p4 
A)  [Ar]4s23d104p6 
B)  [Ar]4s23d104p5 
C)  [Ar]4s24p6 
D)  [Ar]4s24d104p6 
E)  [Ar]4s23d104p4

Question 5

Which of the following elements is a noble gas?

Accepted Answer

A)  As 
B)  O 
C)  I 
D)  Fe 
E)  Kr 
A)  As 
B)  O 
C)  I 
D)  Fe 
E)  Kr

Question 6

How many valence electrons do the alkali metals possess?

Accepted Answer

A)  1 
B)  2 
C)  7 
D)  6 
E)  8 
A)  1 
B)  2 
C)  7 
D)  6 
E)  8

Question 7

Give the complete electronic configuration for Mn.

Accepted Answer

A)  1s22s22p63s23p64s24d5 
B)  1s22s22p63s23p64s13d6 
C)  1s22s22p63s23p64s23d5 
D)  1s22s22p63s23p64s24p5 
A)  1s22s22p63s23p64s24d5 
B)  1s22s22p63s23p64s13d6 
C)  1s22s22p63s23p64s23d5 
D)  1s22s22p63s23p64s24p5

Question 8

How many valence electrons do the noble gases possess?

Accepted Answer

A)  1 
B)  2 
C)  7 
D)  6 
E)  8 
A)  1 
B)  2 
C)  7 
D)  6 
E)  8

Question 9

Give the number of protons in P-3.

Accepted Answer

A)  18 
B)  12 
C)  19 
D)  15 
E)  16 
A)  18 
B)  12 
C)  19 
D)  15 
E)  16

Question 10

Why does the size of the transition elements stay roughly the same across a period?

Accepted Answer

The electrons added as the transition el

Question 11

What is the identity of element Q if the ion Q2+ contains 18 electrons?

Accepted Answer

A)  Si 
B)  S 
C)  Ar 
D)  Ca 
A)  Si 
B)  S 
C)  Ar 
D)  Ca

Question 12

Lithium belongs to the ________ group of the periodic table.

Accepted Answer

A)  alkali metal 
B)  alkaline earth metal 
C)  halogen 
D)  noble gas 
A)  alkali metal 
B)  alkaline earth metal 
C)  halogen 
D)  noble gas

Question 13

How many valence electrons do alkali earth metals possess?

Accepted Answer

A)  1 
B)  2 
C)  7 
D)  6 
E)  8 
A)  1 
B)  2 
C)  7 
D)  6 
E)  8

Question 14

Are anions typically larger or smaller than their corresponding atom?
 Why?

Accepted Answer

Anions are larger than their correspondi

Question 15

Predict the charge that an ion formed from sodium would have.

Accepted Answer

A)  1- 
B)  6+ 
C)  3- 
D)  1+ 
E)  2- 
A)  1- 
B)  6+ 
C)  3- 
D)  1+ 
E)  2-

Question 16

Choose the statement that is TRUE.

Accepted Answer

A)  Outer electrons efficiently shield one another from nuclear charge. 
B)  Core electrons effectively shield outer electrons from nuclear charge. 
C)  Valence electrons are most difficult of all electrons to remove. 
D)  Core electrons are the easiest of all electrons to remove. 
E)  All of the above are true. 
A)  Outer electrons efficiently shield one another from nuclear charge. 
B)  Core electrons effectively shield outer electrons from nuclear charge. 
C)  Valence electrons are most difficult of all electrons to remove. 
D)  Core electrons are the easiest of all electrons to remove. 
E)  All of the above are true.

Question 17

Choose the ground state electron configuration for Ti2⁺.

Accepted Answer

A)  [Ar]3d2 
B)  [Ar]4s2 
C)  [Ar]4s23d2 
D)  [Ar]4s23d4 
E)  [Ar]3d4 
A)  [Ar]3d2 
B)  [Ar]4s2 
C)  [Ar]4s23d2 
D)  [Ar]4s23d4 
E)  [Ar]3d4

Question 18

How many protons does the Al3+ ion possess?

Accepted Answer

A)  16 
B)  10 
C)  6 
D)  0 
E)  13 
A)  16 
B)  10 
C)  6 
D)  0 
E)  13

Question 19

When filling degenerate orbitals,electrons fill them singly first,with parallel spins is known as

Accepted Answer

A)  Pauli exclusion principle. 
B)  Hund's rule. 
C)  Aufbau principle. 
D)  Heisenberg uncertainty principle. 
A)  Pauli exclusion principle. 
B)  Hund's rule. 
C)  Aufbau principle. 
D)  Heisenberg uncertainty principle.

Question 20

Choose the ground state electron configuration for Cr3⁺.

Accepted Answer

A)  [Ar]4s13d2 
B)  [Ar] 
C)  [Ar]4s23d6 
D)  [Ar]3d3 
E)  [Ar]4s23d1 
A)  [Ar]4s13d2 
B)  [Ar] 
C)  [Ar]4s23d6 
D)  [Ar]3d3 
E)  [Ar]4s23d1

Exam 4: Periodic Properties of the Elements

Which of the following elements is a lanthanide?

Define ionization energy.

Give the ground state electron configuration for Br⁻.

Which of the following elements is a noble gas?

How many valence electrons do the alkali metals possess?

Give the complete electronic configuration for Mn.

How many valence electrons do the noble gases possess?

Give the number of protons in P-3.

Why does the size of the transition elements stay roughly the same across a period?

What is the identity of element Q if the ion Q2+ contains 18 electrons?

Lithium belongs to the ________ group of the periodic table.

How many valence electrons do alkali earth metals possess?

Are anions typically larger or smaller than their corresponding atom? Why?

Predict the charge that an ion formed from sodium would have.

Choose the statement that is TRUE.

Choose the ground state electron configuration for Ti2⁺.

How many protons does the Al3+ ion possess?

When filling degenerate orbitals,electrons fill them singly first,with parallel spins is known as

Choose the ground state electron configuration for Cr3⁺.

Essentials: Units, Measurements, and Problem Solving

Atoms

The Quantum Mechanical Model of the Atom

Molecules and Compounds

Chemical Bonding I

Chemical Bonding Ii

Chemical Reactions and Chemical Quantities

Introduction to Solutions and Aqueous Reactions

Thermochemistry

Gases

Liquids, Solids, and Intermolecular Forces

Crystalline Solids and Modern Materials

Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Aqueous Ionic Equilibrium

Free Energy and Thermodynamics

Electrochemistry

Radioactivity and Nuclear Chemistry

Organic Chemistry

Transition Metals and Coordination Compounds

Filters

Give the number of protons in P^-3.

What is the identity of element Q if the ion Q²⁺ contains 18 electrons?

Choose the ground state electron configuration for Ti²⁺.

How many protons does the Al³⁺ ion possess?

Choose the ground state electron configuration for Cr³⁺.