An element X decays first by positron emission and then two `alpha`-particles are emitted in succesive radioactive decay. If the product nucleus has a mass number 229 andd atomic number 89, the mass number and atomic number of element X are

An element X decays , first by positron emission and then two alpha -particles are emitted in successive radiactive decay. If the product nucleus has a mass number 229 and atomic number 89 , the mass number and atomic number of element X are.

An element X decays , first by positron emission and then two alpha -particles are emitted in successive radiactive decay. If the product nucleus has a mass number 229 and atomic number 89 , the mass number and atomic number of element X are.

An element X decays first by positron emission and then two alpha - particles are emitted in successive radioactive decay. If the product nucleus has a mass number 229 and atomic number 89, the mass number and the atomic number of element X are

Match the column in radioactive decay process of nucleus with atomic number Z and mass number A.

A radioactiv element has atomic number A and mass number M. It emits one alpha - particle .The atomic number and mass number of new element will be

If uranium (mass number 238 and atomic number 92) emits an alpha-particle, the product has mass no. and atomic no.

A nucleus X_n^m emits one alpha -particle and one beta -particle. What are the mass number and atomic number of the product nucleus?

If uranium (mass number = 238 and atomic number = 92) emits an alpha -particle, the product has mass number and atomic number respectively are