Please please help please

D

75 neutrons and 50 protons and 50 electrons

Explanation:

Atomic number represents the number of protons and it's the same number for electrons

50 protons and 50 electrons

the mass number represents the number of neutrons and protons

125-50=75 neutrons

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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sry but any answer choices