a beam of light , initially travelling in the air strikes water surface at an angel of 28.5° with the normal. If the light in water is 2.22 x10^8ms-1 determine the angle of refraction?​

It won't lose or gain electrons if it's a covalent bond it shares the electrons with another atom or atoms. if it is an ionic bond it will lose the 3 electrons on the outer shell and become a positively charged ion.  credit goes to @sunshinebaby of answers.yahoo.com.

The magnets would be | n s | and | s n|

Answerboth technicians (a) and (b);