Calculate the energy change for the formation of MgBr2(s)from its elements in their standard states: Mg(s)+ Br2(l)→ MgBr2(s)? Mg(s)→ Mg(g)+147.1 kJ/mol Mg(g)→ Mg+(g)+ e- +737.8 kJ/mol Mg+(g)→ Mg2+(g)+ e- +1451 kJ/mol Br2(l)→ Br2(g)+30.9 kJ/mol 1/2 Br2(g)→ Br(g)+112.0 kJ/mol Br(g)+ e- → Br-(g)-325.0 kJ/mol MgBr2(s)→ Mg2+(g)+ 2Br-(g)+2440 kJ/mol

A) -150.8 kJ/mol B) -286.0 kJ/mol C) -499.2 kJ/mol D) -5682 kJ/mol A) -150.8 kJ/mol B) -286.0 kJ/mol C) -499.2 kJ/mol D) -5682 kJ/mol C

The four spheres below represent KS1U1P1+S1S1P0,CaS1U1P12+S1S1P0,ClS1U1P1-S1S1P0,and SS1U1P12-S1S1P0,not necessarily in that order. -Which sphere most likely represents the S2- ion?

A) A B) B C) A or B D) C or D A) A B) B C) A or B D) C or D D

The four spheres below represent KS1U1P1+S1S1P0,CaS1U1P12+S1S1P0,ClS1U1P1-S1S1P0,and SS1U1P12-S1S1P0,not necessarily in that order. -Which sphere most likely represents the Ca2+ ion?

A) A B) B C) A or B D) C or D A) A B) B C) A or B D) C or D A

How many electrons are in the outermost shell of the Al3+ ion in its ground state?

A) 2 B) 3 C) 6 D) 8 A) 2 B) 3 C) 6 D) 8

Give the electronic configuration for Mn2+.

A) [Ar]2s22p63d5 B) [Ar]4s23d3 C) [Ar]4s13d4 D) [Ar]3d5 A) [Ar]2s22p63d5 B) [Ar]4s23d3 C) [Ar]4s13d4 D) [Ar]3d5

Element A has a valence shell configuration of ns2np4 while Element B has a valence shell configuration of ns2np5 where n = energy level.Which of the following statements is true regarding these elements?

A) The ionization energy of A is lower than the ionization energy of B. B) The electron affinity of A is higher than the electron affinity of B. C) Element A and B are transition metals. D) Element A and B have the same I.E. A) The ionization energy of A is lower than the ionization energy of B. B) The electron affinity of A is higher than the electron affinity of B. C) Element A and B are transition metals. D) Element A and B have the same I.E.

Exam 6: Ionic Compounds: Periodic Trends and Bonding

Calculate the energy change for the formation of MgBr₂(s)from its elements in their standard states: Mg(s)+ Br₂(l)→ MgBr₂(s)? Mg(s)→ Mg(g)+147.1 kJ/mol Mg(g)→ Mg⁺(g)+ e^- +737.8 kJ/mol Mg⁺(g)→ Mg²⁺(g)+ e^- +1451 kJ/mol Br₂(l)→ Br₂(g)+30.9 kJ/mol 1/2 Br₂(g)→ Br(g)+112.0 kJ/mol Br(g)+ e^- → Br^-(g)-325.0 kJ/mol MgBr₂(s)→ Mg²⁺(g)+ 2Br^-(g)+2440 kJ/mol

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Question 1

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The four spheres below represent K⁺,Ca²⁺,Cl^-,and S^2-,not necessarily in that order. -Which sphere most likely represents the S^2- ion?

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Question 2

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The four spheres below represent K⁺,Ca²⁺,Cl^-,and S^2-,not necessarily in that order. -Which sphere most likely represents the Ca²⁺ ion?

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Question 3

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How many electrons are in the outermost shell of the Al³⁺ ion in its ground state?

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Question 4

Give the electronic configuration for Mn²⁺.

(Multiple Choice)

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Question 5

Which ion does not have a noble gas configuration in its ground state?

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Question 6

Which contains ionic bonds?

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Question 7

Which element has the highest first electron affinity?

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Question 8

The following four spheres represent a metal atom,a nonmetal atom,a monatomic anion and a monatomic cation,not necessarily in that order. -Which sphere represents the metal atom?

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Question 9

-Atoms of which element,indicated by letter on the periodic table above,would be expected to have the lowest second ionization energy,E_i1?

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Question 10

Consider Li⁺,F^-,and O^2-.Which ratio should be the largest?

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Question 11

-Atoms of which element,indicated by letter on the periodic table above,would be expected to have the lowest first ionization energy,E_i1?

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Question 12

How many electrons are in the outermost shell of the K⁺ ion in its ground state?

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Question 13

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

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Question 14

The ion Q²⁺ contains 36 electrons.The identity of element Q is ________.

(Short Answer)

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Question 15

The following four spheres represent a metal atom,a nonmetal atom,a monatomic anion and a monatomic cation,not necessarily in that order. -Which sphere represents the monatomic anion?

(Multiple Choice)

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Question 16

Element A has a valence shell configuration of ns²np⁴ while Element B has a valence shell configuration of ns²np⁵ where n = energy level.Which of the following statements is true regarding these elements?

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Question 17

List the elements Na,Ca,Rb,Cl,He in order of decreasing first ionization energy.

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Question 18

Which period 2 element has successive first through seventh ionization energies (kJ/mol)of E_i1 = 1,402;E_i2 = 2,856;E_i3 = 4,578;E_i4 = 7,475;E_i5 = 9,445;E_i6 = 53,267;and E_i7 = 64,360?

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Question 19

The group 4A element that always obeys the octet rule in its stable compounds is ________.

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Question 20

Showing 1 - 20 of 138

Exam 6: Ionic Compounds: Periodic Trends and Bonding

The four spheres below represent K+,Ca2+,Cl-,and S2-,not necessarily in that order. -Which sphere most likely represents the S2- ion?

The four spheres below represent K+,Ca2+,Cl-,and S2-,not necessarily in that order. -Which sphere most likely represents the Ca2+ ion?

How many electrons are in the outermost shell of the Al3+ ion in its ground state?

Give the electronic configuration for Mn2+.

Which ion does not have a noble gas configuration in its ground state?

Which contains ionic bonds?

Which element has the highest first electron affinity?

The following four spheres represent a metal atom,a nonmetal atom,a monatomic anion and a monatomic cation,not necessarily in that order. -Which sphere represents the metal atom?

-Atoms of which element,indicated by letter on the periodic table above,would be expected to have the lowest second ionization energy,Ei1?

Consider Li+,F-,and O2-.Which ratio should be the largest?

-Atoms of which element,indicated by letter on the periodic table above,would be expected to have the lowest first ionization energy,Ei1?

How many electrons are in the outermost shell of the K+ ion in its ground state?

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

The ion Q2+ contains 36 electrons.The identity of element Q is ________.

The following four spheres represent a metal atom,a nonmetal atom,a monatomic anion and a monatomic cation,not necessarily in that order. -Which sphere represents the monatomic anion?

Element A has a valence shell configuration of ns2np4 while Element B has a valence shell configuration of ns2np5 where n = energy level.Which of the following statements is true regarding these elements?

List the elements Na,Ca,Rb,Cl,He in order of decreasing first ionization energy.

Which period 2 element has successive first through seventh ionization energies (kJ/mol)of Ei1 = 1,402;Ei2 = 2,856;Ei3 = 4,578;Ei4 = 7,475;Ei5 = 9,445;Ei6 = 53,267;and Ei7 = 64,360?

The group 4A element that always obeys the octet rule in its stable compounds is ________.

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The four spheres below represent K⁺,Ca²⁺,Cl^-,and S^2-,not necessarily in that order. -Which sphere most likely represents the S^2- ion?

The four spheres below represent K⁺,Ca²⁺,Cl^-,and S^2-,not necessarily in that order. -Which sphere most likely represents the Ca²⁺ ion?

How many electrons are in the outermost shell of the Al³⁺ ion in its ground state?

Give the electronic configuration for Mn²⁺.

-Atoms of which element,indicated by letter on the periodic table above,would be expected to have the lowest second ionization energy,E_i1?

Consider Li⁺,F^-,and O^2-.Which ratio should be the largest?

-Atoms of which element,indicated by letter on the periodic table above,would be expected to have the lowest first ionization energy,E_i1?

How many electrons are in the outermost shell of the K⁺ ion in its ground state?

The ion Q²⁺ contains 36 electrons.The identity of element Q is ________.

Element A has a valence shell configuration of ns²np⁴ while Element B has a valence shell configuration of ns²np⁵ where n = energy level.Which of the following statements is true regarding these elements?

Which period 2 element has successive first through seventh ionization energies (kJ/mol)of E_i1 = 1,402;E_i2 = 2,856;E_i3 = 4,578;E_i4 = 7,475;E_i5 = 9,445;E_i6 = 53,267;and E_i7 = 64,360?