Alpha particles consist of two protons and two neutrons bound together into a particle identical to a helium nucleus. they have much less energy than either beta particles of gamma waves. suppose a geiger counter was placed 10 cm from an alpha emitter, and clicks were recorded for three minutes.

a) 0 clicks
b) 2 clicks
c) 5 clicks
d) 10 clicks

Which of the following is part of the explanation or description of electromagnetic waves? (select all that apply) a. electrically charged molecules in a medium transfer their energy to nearby electrically charged molecules. b. a changing electric field causes a changing magnetic field. c. magnetic molecules in a medium transfer their energy to nearby magnetic molecules. d. a changing magnetic field causes a changing electric field.