Use vsepr to predict the electron pair geometry of o2

The answer is: trigonal planar.

VSEPR theory (The Valence Shell Electron Pair Repulsion Theory) uses the AXE notation (m and n are integers, m + n = number of regions of electron density).

For oxygen molecule (O₂):

m = 1; the number of atoms bonded to the central atom.

n = 2; the number of lone pairs on the central atom.

Atom of oxygen has sp2 hybrudization and shape of the molecule is linear.