A common example of alpha decay is

The energy released (Q)during the alpha decay of `"^238uuu_92` is ___ Mev

In an alpha -decay

During alpha -decay:

By using the following atomic masses : ._(92)^(238)U = 238.05079u . ._(2)^(4)He = 4.00260u, ._(90)^(234)Th = 234.04363u . ._(1)^(1)H = 1.007834, ._(91)^(237)Pa = 237.065121u (i) Calculate the energy released during the alpha- decay of ._(92)^(238)U . (ii) Show that ._(92)^(238)U cannot spontaneously emit a proton.

A nucleus of mass number 220 decays by alpha decay. The energy released in the reation is 5 MeV. The kinetic energy of an alpha- particle is

Calculate the amount of energy released during the alpha -decay of ._(92)^(238)Urarr_(90)^(234)Th+._(2)^(4)He Given: atomic mass of ._(92)^(238)U=238.05079 u , atomic mass of ._(90)^(234)Th=234.04363 u , atomic mass ._(2)^(4)He=4.00260u , 1u=931.5 MeV//c^(2) . Is this decay spontaneous?Give reason.