Need !
what is learned if the data from an experiment do not support the hypothesis?
a. incorrect information; the data were not analyzed correctly.
b. some information; the data still valuable information about the hypothesis.
c. no information; the data are bad or incomplete.
d. no information; the experiment is not useful.

it is to be noted that an alpha particle is an helium nucleus. so it contains 2 protons 2 neutrons and has a mass number of 4. when alpha decay particles are ejected from the nucleus it gets transformed into an atom which has atomic number less than 2 and a mass number less than 4.

an equation that could represent alpha decay is radium 226 decay of alpha particle forms radon 222.

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