The impulse necessary to cause of momentum of 20kg• m/sec for a 5 kilogram object is :

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.

Amplify and switch electrical power and electronic signals