Which ionic compound would you expect to have the smallest lattice energy? A) Mg

Question

Which ionic compound would you expect to have the smallest lattice energy? A) MgF2 B)MgCl2 C)MgBr2 D)MgI2 E)CaI2
Which of the following will require the greatest energy input to separate the ions? A) MgF2 B)MgCl2 C)MgBr2 D)MgI2 E)NaCl
Which of the following requires the smallest energy to separate the ions? A) MgF2 B)CaF2 C)KF D)NaF E)LiF Which ionic compound would you expect to have the smallest lattice energy? A) MgF2 B)MgCl2 C)MgBr2 D)MgI2 E)CaI2
Which of the following will require the greatest energy input to separate the ions? A) MgF2 B)MgCl2 C)MgBr2 D)MgI2 E)NaCl
Which of the following requires the smallest energy to separate the ions? A) MgF2 B)CaF2 C)KF D)NaF E)LiF A) MgF2 B)MgCl2 C)MgBr2 D)MgI2 E)CaI2
Which of the following will require the greatest energy input to separate the ions? A) MgF2 B)MgCl2 C)MgBr2 D)MgI2 E)NaCl A) MgF2 B)MgCl2 C)MgBr2 D)MgI2 E)NaCl
Which of the following requires the smallest energy to separate the ions? A) MgF2 B)CaF2 C)KF D)NaF E)LiF A) MgF2 B)CaF2 C)KF D)NaF E)LiF

Explanation / Answer

Which ionic compound would you expect to have the smallest lattice energy?

The more ionic character, the larger lattice energy

From the elements

Calcium is less metallic as Magnesium

The leas ionic is Iodine from F,Cl,Br,

so choose CaI2

Which of the following will require the greatest energy input to separate the ions?

The greatest energy is clearly the MOST ionic

This must be

MgF2, since the electronegative difference is the largerst, i.e. we require high energy

Which of the following requires the smallest energy to separate the ions?

We require the LEAT metallic

Since all are bonded with Fluorine, ignore F

From the metals in list

Calcium is the least meatallic form all

choose CaF2

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