Electronegativity difference between c and h

Using Pauling's scale—C (2.55) and H (2.2)—the electronegativity difference between these two atoms is 0.35. ... Because of this small difference in electronegativities, the C−H bond is generally regarded as being non-polar. In structural formulas of molecules, the hydrogen atoms are often omitted

plasma is the state of matter where the substance is ionized and has no definite shape or volume. the fact of being ionized makes the substance a good electrical conductor.