What year was the first implantation of an artificial hear in a human with no heart replacements happened? * 1975
1972
1971
1970
With their invention, who helped create "Boom Towns"? *
Howard Hughes Jr.
Michael Dell
Howard Hughes Sr.
Domingo Liotta

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.

Aform of energy that is reflected or emitted from objects in the form of electrical and magnetic waves that can travel through space. there are many forms of  electromagnetic  energy including gamma rays, x rays, ultraviolet radiation, visible light, infrared radiation, microwaves and radio waves.