1. Which experimental evidence indicates that: 1) electrons are negatively charged particles?
ii) electrons are the constituents of all atoms?

Ch4 is nonpolar and insoluble in water. since all of the hydrogen atoms are evenly spread around the carbon atom even through the c h bond is polar all the poles cancel each other out.

Particle exchange energy though elastic collision , hope this .

Answerrestate the main idea,essay or thesis, summarize the three subpoints of your essay, leave the reader with an interesting final impression;