In the circuit shown in the figure above where r1 and r2 have equal resistance values, when switch s1 is closed, what voltage would you measure across r2 with your meter? a. 1 v b. 3 v c. 6 v d. 0 v

B. 3V as they both have the same resistance and the potential difference across the circuit could be divided by 2

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.