How does an atom become a positively charged ion?
A. by gaining one or more electrons
B. by gaining one or more neutrons
C. by losing one or more neutrons
D. by losing one or more electrons

 Your answer would be D.  A neutral atom would become positively charged when they lose electrons because electrons are negatively charged.  Removing some of these negative charges causes the atom to become more positively charged.  Hope this has helped you :D

8 m/s because for him to get the same amount of energy as ray is putting out, bobby, who weighs half as much as ray, needs to run twice as fast.

b) nuclear ive learned that in a pedtrodic table