Home
Class 12
PHYSICS
Potassium-40 can decay in three modes .I...

Potassium-40 can decay in three modes .It can decay by `beta^(-)` -emission,`beta^(+) -emission or electron capature. (a) Write the equation showing the end products. (b) Find the Q-value in each of the three cases. Atomic masses of `_18^40(Ar)`,`_19^40K`and `_20^40(Ca)` are 39.9624 u,39.9640 u,and 39.9626 u respectively.

Promotional Banner

Similar Questions

Explore conceptually related problems

Potassium-40 can decay in three modes .It can decay by beta^(-) - emission, beta^(+) -emission or electron capature. (a) Write the equation showing the end products. (b) Find the Q-value in each of the three cases. Atomic masses of Ar_18^40 , K_19^40 and Ca_20^40 are 39.9624 u,39.9640 u,and 39.9626 u respectively.

.^(40)K is an unusual isotope, in that it decays by negative beta emission, positive beta emission, and electron capture. Find the Q values for these decays.

.^(40)K is an unusual isotope, in that it decays by negative beta emission, positive beta emission, and electron capture. Find the Q values for these decays.

.^(40)K is an unusual isotope, in that it decays by negative beta emission, positive beta emission, and electron capture. Find the Q values for these decays.

(a) Find the energy needed to remove a neutron from the nucleus of the calcium isotopes ._(20)^(42)Ca (b) Find the energy needed to remove a proton from this nucleus (c ) Why are these energies different ? Atomic masses of ._(20)^(41)Ca and ._(20)^(42)Ca are 40.962278 u and 41.958622 u respectively.

At what temperature is the root-mean-square speed of an atom in an argon gas cylinder equal to the rms speed of a helium gas atom at -20^(@)C ? The atomic masses of argon and helium are 39.9 a.m.u. and 4.0 a.m.u, respectively.