The incrasing order (lowest first) for the values of e/m for electron, proton, neutron and alpha particle is

e/m  for electron is 1/0 (as electron has negligible mass),

for proton is 1/1,

for neutron is 0/1, and for alpha particle is 2/4 or 1/2. (Note that charge unit for e is −1, for proton is +1, for neutron is 0, )

and for alpha particle is +2. The mass unit (amu) for e is almost 0, fro p is 1, for neutron is 1, and for alpha particles is 4.

Hope it helps you!

Mark as brainliest

the ozone layer acts as a filter for the shorter wavelength and highly hazardous ultraviolet radiation (uvr) from the sun, protecting life on earth from its potentially harmful effects. when the sky is clear, there is an inverse relationship between stratospheric ozone and solar uvr measured at the earth's surface.

може ли да зареждате повече информация, моля