What is the electron pair geometry of the following? (Easy 10 pts!)?

Question

What is the electron pair geometry of the following?

ClO2−

ICl2+

ClF2−

Answers are: Linear, Trigonal planar, Tetrahedral, Trigonal bipyramidal, or Octahedral

Answer 1

ClO2^-

This has 20 electrons and four electron pairs around the central atom, which is Cl.  The electron pair geometry is tetrahedral,

ICl2^+

This has 20 electrons, and also has an electron pair geometry that is tetrahedral

ClF2^-

This has 22 electrons, and has trigonal bipyramidal electron pair geometry

Answer 2

1. tetrahedral because Cl has 4 e- groups

2. tetrahedral because I has 4 e- groups

3. trigonal bipyramidal because Cl has 5 e- groups (i think)