hi i'm doing a science thing at school and i watched this one video but i am still confused here is the link https://rb. gy/enaq3a

Which is the correct symbol for an isotope of iodine with 53 protons and 78 neutrons?

What would be the result of an alpha particle coming into a magnetic field? a) the alpha particle will stop moving. b) the alpha particle will reverse its direction. c) the alpha particle will be deflected in a curve path. d) the alpha particle will continue to travel in a straight line.

Which of the following are forms of phase changes a. freezing b. condensation c. heating d. exchanging