Which statement is true about nuclear fusion? It is caused by the same process that causes nuclear fission. It does not occur naturally in the solar system. It has very low activation energy. It produces nearly all the elements that are heavier than helium.

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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that tool would be a compass