Chemistry 2e · 7.1 Ionic Bonding

Ionic Bonding: practice problems

5 problems from the book, with its answers. Check your working, or have any of them explained to you on the whiteboard.

1. Exercises 1

   Does a cation gain protons to form a positive charge or does it lose electrons?

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2. Exercises 3

   Which of the following atoms would be expected to form negative ions in binary ionic compounds and which would be expected to form positive ions: P, I, Mg, Cl, In, Cs, O, Pb, Co?

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3. Exercises 5

   Predict the charge on the monatomic ions formed from the following atoms in binary ionic compounds:

   (a) P

   (b) Mg

   (c) Al

   (d) O

   (e) Cl

   (f) Cs

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4. Exercises 7

   Write the electron configuration for each of the following ions:

   (a) As3–

   (b) I–

   (c) Be²⁺

   (d) Cd²⁺

   (e) O2–

   (f) Ga³⁺

   (g) Li⁺

   (h) N3–

   (i) Sn²⁺

   (j) Co²⁺

   (k) Fe²⁺

   (l) As³⁺

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5. Exercises 9

   Write out the full electron configuration for each of the following atoms and for the monatomic ion found in binary ionic compounds containing the element:

   (a) Al

   (b) Br

   (c) Sr

   (d) Li

   (e) As

   (f) S

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