Question 11 Not yet answered An electron and a proton enter a bubble chamber and produce the tracks shown to the right. Marked out of 1 Particles enter from here pFlag question I Which statement best explains tracks W and Y? Select one: 0 a. Both tracks are electrons O b. Both tracks are protons Â° c. Track w is the proton and Y is the electron O d. Track W is the electron and Y is the proton Solution Option c is the correct answer Bubble Chamber This consists of a chamber containing liquid hydrogen. The pressure is so low that the hydrogen is almost on the point of vaporizing. When an ionizing radiation enters the chamber it causes the hydrogen to ionize, which triggers vaporization and a trail of bubbles shows the track of the particle. .