SAMPLE PROBLEM 8.6
Writing Electron Configurations of Main-Group Ions
PLAN:
SOLUTION:
(a) iodine (Z = 53)
(b) potassium (Z = 19)
(c) indium (Z = 49)
Ions of elements in Groups 1A, 2A, 6A and 7A are usually isoelectronic with the nearest noble gas.
Metals in Groups 3A to 5A can lose the np, or ns and np, electrons.
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