Question 1

Place the following elements in order of increasing atomic radius. S Te O

Accepted Answer

A)   Te 
B)   S 
C)   O 
D)   O 
E)   Te < O < S

Question 2

How many valence electrons does an atom of Na possess?

Accepted Answer

A)   1
B)   3
C)   4
D)   7
E)   0

Question 3

How many unpaired electrons are there in the ground state of Cl?

Accepted Answer

A)   0
B)   4
C)   3
D)   2
E)   1

Question 4

Choose the valence orbital diagram that represents the ground state of Sr2⁺.

Accepted Answer

A)  2⁺. 
A)     
B)     
C)     
D)     
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B)  2⁺. 
A)     
B)     
C)     
D)     
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C)  2⁺. 
A)     
B)     
C)     
D)     
E)    " class="answers-bank-image d-inline" rel="preload" >
D)  2⁺. 
A)     
B)     
C)     
D)     
E)    " class="answers-bank-image d-inline" rel="preload" >
E)  2⁺. 
A)     
B)     
C)     
D)     
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Question 5

Choose the diamagnetic species from below.

Accepted Answer

A)   Sn2⁺
B)   Br
C)   As
D)   Cr
E)   None of the above is diamagnetic.

Question 6

Which of the following species will have the highest ionization energy?

Accepted Answer

A)   Fr+
B)   Xe
C)   Cl-
D)   S2-
E)   As3-

Question 7

Place the following in order of decreasing metallic character. Si S P Cl

Accepted Answer

A)   S > P > Cl > Si
B)   Cl > S > P > Si
C)   Si > P > S > Cl
D)   Cl > P > S > Si
E)   P > Si > S > Cl

Question 8

Electrons filling up the orbitals from low to high is known as (the)

Accepted Answer

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

Question 9

Place the following in order of increasing atomic radius. Sr Li Ca

Accepted Answer

A)   Sr 
B)   Li 
C)   Ca 
D)   Sr 
E)   Li < Ca < Sr

Question 10

Place the following elements in order of decreasing atomic radius. Xe Cs Ne

Accepted Answer

A)   Ne > Xe > Cs
B)   Xe > Cs > Ne
C)   Ne > Cs > Xe
D)   Cs > Xe > Ne
E)   Cs > Ne > Xe

Question 11

Why do successive ionization energies increase?

Accepted Answer

After removing the first electron,the sp...

Question 12

Give the number of core electrons for Mg2+.

Accepted Answer

Question 13

Place the following in order of increasing radius. I- Mg2+ K+

Accepted Answer

A)   I- + 2+
B)   Mg2+ + -
C)   K+ - 2+
D)   I- 2+ +
E)   K+ 2+ -

Question 14

Of the following,which atom has the largest atomic radius?

Accepted Answer

A)   Li
B)   F
C)   Na
D)   Cl

Question 15

Of the following,which element has the highest first ionization energy?

Accepted Answer

A)   aluminum
B)   magnesium
C)   silicon
D)   sodium

Question 16

Which reaction below represents the electron affinity of Li?

Accepted Answer

A)   Li(g)  + e⁻ → Li⁻(g) 
B)   Li(g)  → Li⁺(g)  + e⁻
C)   Li(g)  + e⁻ → Li⁺(g) 
D)   Li⁺(g)  → Li(g)  + e⁻
E)   Li⁺(g)  + e⁻ → Li(g)

Question 17

Which element has the ground-state electron configuration [Xe]6s2?

Accepted Answer

A)   Re
B)   Ir
C)   Eu
D)   Gd

Question 18

Place the following in order of decreasing radius. Se Cl- Te2-

Accepted Answer

A)   Cl- > Te2- > Se
B)   Cl- > Se > Te2-
C)   Se > Te2- > Cl-
D)   Se > Cl- > Te2-
E)   Te2- > Cl- > Se

Question 19

How many valence electrons does a neutral lanthanide atom have?

Accepted Answer

A)   4
B)   3
C)   6
D)   64
E)   14

Question 20

Give the set of four quantum numbers that could represent the electron gained to form the Br ION from the Br atom.

Accepted Answer

A)   n = 4, l = 1, ml = 1, ms = + l = 1, ms = +   
B)   n = 4, l = 0, ml = 1, ms = -   
C)   n = 4, l = 1, ml = 1, ms = -   
D)   n = 3, l = 2, ml = -2, ms = -   
E)   n = 5, l = 1, ml = -1, ms = -  " class="answers-bank-image d-inline" rel="preload" >
B)   n = 4, l = 0, ml = 1, ms = - l = 1, ms = +   
B)   n = 4, l = 0, ml = 1, ms = -   
C)   n = 4, l = 1, ml = 1, ms = -   
D)   n = 3, l = 2, ml = -2, ms = -   
E)   n = 5, l = 1, ml = -1, ms = -  " class="answers-bank-image d-inline" rel="preload" >
C)   n = 4, l = 1, ml = 1, ms = - l = 1, ms = +   
B)   n = 4, l = 0, ml = 1, ms = -   
C)   n = 4, l = 1, ml = 1, ms = -   
D)   n = 3, l = 2, ml = -2, ms = -   
E)   n = 5, l = 1, ml = -1, ms = -  " class="answers-bank-image d-inline" rel="preload" >
D)   n = 3, l = 2, ml = -2, ms = - l = 1, ms = +   
B)   n = 4, l = 0, ml = 1, ms = -   
C)   n = 4, l = 1, ml = 1, ms = -   
D)   n = 3, l = 2, ml = -2, ms = -   
E)   n = 5, l = 1, ml = -1, ms = -  " class="answers-bank-image d-inline" rel="preload" >
E)   n = 5, l = 1, ml = -1, ms = - l = 1, ms = +   
B)   n = 4, l = 0, ml = 1, ms = -   
C)   n = 4, l = 1, ml = 1, ms = -   
D)   n = 3, l = 2, ml = -2, ms = -   
E)   n = 5, l = 1, ml = -1, ms = -  " class="answers-bank-image d-inline" rel="preload" >

Exam 8: Periodic Properties of the Elements

How many unpaired electrons are there in the ground state of Cl?

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Place the following elements in order of increasing atomic radius. S Te O

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Of the following,which atom has the largest atomic radius?

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Choose the valence orbital diagram that represents the ground state of Sr2⁺.

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Place the following in order of decreasing radius. Se Cl- Te2-

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Place the following in order of increasing atomic radius. Sr Li Ca

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Place the following in order of decreasing metallic character. Si S P Cl

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Which of the following species will have the highest ionization energy?

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Which element has the ground-state electron configuration [Xe]6s2?

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Give the set of four quantum numbers that could represent the electron gained to form the Br ION from the Br atom.

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Place the following elements in order of decreasing atomic radius. Xe Cs Ne

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Of the following,which element has the highest first ionization energy?

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Which reaction below represents the electron affinity of Li?

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Give the number of core electrons for Mg2+.

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How many valence electrons does a neutral lanthanide atom have?

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Electrons filling up the orbitals from low to high is known as (the)

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Why do successive ionization energies increase?

Correct AnswerverifiedAfter removing the first electron,the sp...View AnswerShow Answer

Place the following in order of increasing radius. I- Mg2+ K+

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How many valence electrons does an atom of Na possess?

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Choose the diamagnetic species from below.

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Choose the valence orbital diagram that represents the ground state of Sr²^⁺.

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Place the following in order of decreasing radius. Se Cl^- Te^2-

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Which element has the ground-state electron configuration [Xe]6s²?

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Give the number of core electrons for Mg²⁺.

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After removing the first electron,the sp...
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Place the following in order of increasing radius. I^- Mg²⁺ K⁺

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