A sample of gas has a volume of 16.0 liters at a pressure of 0.5 atmosphere. When the volume decreases to 4.0 liters at constant temperature, what will be the resulting pressure of the sample?

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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