MOLECULAR POLARITYFIELD NOTE 70 / 175
Is CH2F2 polar or nonpolar?
CH2F2 is polar because two C–F bonds and two C–H bonds do not cancel around a tetrahedral carbon.
Difluoromethane · tetrahedral at C
The molecule in space
Drag to turn the molecule. Show angles to read the model geometry.
01 / MODEL RECORDPubChem 3D coordinates. Atom sizes and bond thickness are illustrative.How model data is used ↗
Why CH2F2 is polar
The two fluorines draw electron density more strongly than the two hydrogens. A tetrahedron with two F and two H substituents is not a four-way equal-bond arrangement, so the C–F dipoles leave a nonzero resultant.
What to notice
Do not treat two fluorines as automatically opposite: in a tetrahedron any two bonds meet at roughly 109.5°, not 180°.
Common questions about CH2F2
- 01
What does the Lewis structure of CH2F2 show?
Carbon makes four single bonds: two C–F and two C–H. Each fluorine has three lone pairs.
- 02
What is the molecular geometry of CH2F2?
CH2F2 has a tetrahedral at C molecular geometry. The 3D model shows representative bond angles of 107.1° and 109.5° and 111.5°. These angles come from the displayed model coordinates.
- 03
What is the molar mass of CH2F2?
CH2F2 has an approximate molar mass of 52.02 g/mol, calculated from its formula using abridged standard atomic weights. Natural isotope variation can change the last digits.