Calculate the net torque (magnitude and direction) on the beam in the figure about
an axis through O perpendicular to the
page.
25 N
30%
O
< 20°
45°
C С
2.0 m
10 N
4.0 m
30 N​

On the galapagos islands charles studied finches

Some type of thing that was invisible

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.