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Exam 6: Ionic Bonds and Some Main-Group Chemistry

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Question 1

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What is the name for the group of elements indicated by the shaded portion of the periodic table?

A) alkali metals
B) alkaline earth metals
C) inner-transition metals
D) transition metals

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Question 2

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Using shorthand notation,the ground-state electron configuration for Co²⁺ is predicted to be ________.

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Question 3

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Both chlorine and bromine can be produced in the laboratory by reacting the halides with manganese(IV) oxide.If the following equation is balanced in an acidic solution,then the MnO₂ is acting as a(n) ________ and the coefficient in front of H⁺ is ________. ____ MnO₂(s) + ____ Cl^-(aq) + ____ H⁺(aq) → ____ Mn²⁺(aq) + ____ Cl₂(g) + ____ H₂O(l)

Which element has the most favorable (most negative) electron affinity?

Which ion has the smallest ionic radius?

An element that has the valence electron configuration 6s²6p⁶ belongs to which period and group?

Which of the following ionic compounds would be expected to have the highest lattice energy?

Which ionic compound would be expected to have the highest lattice energy?

Which period 3 element has successive first through seventh ionization energies (kJ/mol) of E_i1 = 578;E_i2 = 1,817;E_i3 = 2,745;E_i4 = 11,575;E_i5 = 14,830;E_i6 = 18,376;and E_i7 = 23,293?

Most of the compounds of the 2+ ions of the first row of the transition metals from Mn to Zn are colored due to absorption of visible light promoting an electron from one 3d orbital to another.Which of these ions should tend to form colorless compounds?

Which element has the least favorable (least negative) electron affinity?

Which of the following three sets consist of atoms or ions with the same electron configuration in the ground state? (I) O^2-,Ne,and Mg²⁺ (II) Ni,Cu⁺,and Zn²⁺ (III) Hg,Tl⁺,and Pb²⁺

Which of the hydrogen halide acids is used to etch glass?

What is the name for the group of elements indicated by the shaded portion of the periodic table?

Which element has the most favorable (most negative) electron affinity?

The four spheres below represent Na⁺,Mg²⁺,F⁻,and O^2-,not necessarily in that order. -Which sphere most likely represents the Mg²⁺ ion?

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

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

Which element,indicated by letter on the periodic table,is able to form compounds that do not obey the octet rule?

-What is the likely formula for the binary compound formed from the elements represented by letters A and C on the periodic table above?