2A/ + 3Cl2 -- AICI3 In the reaction shown above, 54,0 grams of Al is reacted with 142.0 grams of Cl, Based on the stoichiometry of this reaction, the limiting
reactant is
A
Al, because there is a smaller mass of Al
Al, because there is a smaller number of moles of Al
Cl, because there is a smaller number of moles of Cl,
Cly, because it will be used up completely in this reaction

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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