Consider the decay of radium-226 atom into an alpha particle and radon-222. Then, what is the mass defect of the reaction-
Mass of radium -226 atom = 226.0256 u
Mass of radon - 222 atom = 222.0715
Mass of helium-4 atom=4.0026 u

What is the mass of :) 5 moles of helium atoms (Atomic mass of helium= 4) ?

What is the mass of 4 moles of aluminium atoms? (Atomic mass of Al = 27 u )

Calculate the binding energy of an alpha particle from the following data: mass of _1^1H atom = 1.007825 u mass of neutron = 1.008665 u mass of _4^2He atom = 4.00260 u Take 1 u = 931 MeV c^(-2)

Calculate the binding energy of an alpha particle from the following data: mass of _1^1H atom = 1.007825 u mass of neutron = 1.008665 u mass of _4^2He atom = 4.00260 u Take 1 u = 931 MeV c^(-2)

The ._(88)^(226)Ra nucleus undergoes alpha -decay to ._(88)^(226)Rn . Calculate the amount of energy liberated in this decay. Take the mass of ._(88)^(226)Ra to be 226.025 402 u , that of ._(88)^(226)Rn to be 222.017 571 u , and that of ._(2)^(4)He to be 4.002 602 u .

The atomic mass number of Radium is A=226 , its half life is 1622 years. What is the activity of 1g Radium ?

The atomic mass number of Radium is A=226 , its half life is 1622 years. What is the activity of 1g Radium ?