Express 1 amu in kilogram.

If 13.6 eV energy is required to ionise the hydrogen atom, then energy...

If an electron jumps from 1st orbital to 3rd orbital, than it will.

""(92)U^(238) rarr ""(90)Th^(234) + ""(2)X^(4), what is X ?

A radioactive element has half-life period 800 yr. After 6400 yr, what...

In Rutherford scattering experiment, what will b ethe correct angle fo...

.1 H^1 + .1H^1 + .1H^2 rarr X + .(+1)e^0 + energy. The emitted particl...

Which of the following isotopes is used for treatment of cancer ?

If half life of radioactive atom is 2.3 days, then its decay constant ...

A radioactive element .90 X^238 decay into .83 Y^222. The number of be...

The ionization of H-atom is :

The volume occupied by an atom is greater than the volume of the nucle...

What percentage (approximate) of original radioactive substance left a...

Which of the following particles has similar mass of electron ?

If half life period of radium is 1600 years, its average life period w...

The energy equivalent of one atomic mass unit is

Hydrogen bomb is based on the principle of

Energy generation in starts is mainly due to

Who discovered the nucleus ?

In nuclear reaction .(4)Be^(9)+.(2)He^(4)rarr.(6)C^(12)+X,X will be

What does X stand for in the given reaction ? ""(20)Ca^(41) rarr ""(...