7.1 Ionic Bonding

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

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?

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

Write the electron configuration for each of the following ions:

(a) As^3–

(b) I^–

(c) Be²⁺

(d) Cd²⁺

(e) O^2–

(f) Ga³⁺

(g) Li⁺

(h) N^3–

(i) Sn²⁺

(j) Co²⁺

(k) Fe²⁺

(l) As³⁺

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