A simple pendulum consists of a ball connected to one end of a thin brass wire. The period of the pendulum is 1.76 s. The temperature rises by 141 C, and the length of the wire increases. Determine the change in the period of the heated pendulum.

answer; i believe that the correct answer is (a) potassium(k)

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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we need the questions , i may then you.

if you're asking what comes out, it's steam.