PLEASE HELP I've tried doing it on my own and still don't understand it. What is the orbital period of a moon orbits around a 1.0*1026 kg planet that has a is the orbit radius of 2.48 x 107? Here is the equation for orbital period

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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possibly, yes.

explanation:

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it is stable as it is in group 0 which have full outer shells of electrons