Solution a contains 0.1 mol of sucrose, c12h22o11 dissolved in 500 g of water. solution b contains 0.1 mol of sodium chloride, nacl, in 500g of water. which of the following statements about these solutions is true? both solutions have the same vapor pressure. solution a would boil at a higher temperature than solution b would. solution a would freeze at a higher temperature than solution b would. both solutions would boil at the same temperature. « previous question next question »

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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considering the question as per the attachment

here we can see that the radon nuclide has 222 as the atomic mass number and 86 as the atomic number.

when it undergoes nuclear fission it gives polonium which has atomic mass number as 218 and atomic number will be 84 along with a helium nucleus which has 4 atomic mass number and 2 as its atomic number.

222 = 218 + 4 (atomic mass number)

86 = ? + 2; therefore ? = 86-2 = 84.

the atomic mass number of polonium will be 84.