In which of the following decay, the element does not change
In which of the following decay, the element does not change
- A
$\beta$- decay
- B
$\alpha$- decay
- C
$\gamma$- decay
- D
None of these
Similar Questions
${ }_{92}^{238} U$ atom disintegrates to ${ }_{84}^{214} Po$ with a half of $45 \times 10^9$ years by emitting $\operatorname{six} \alpha-$ particles and $n$ electrons. Here, $n$ is
${ }_{92}^{238} U$ atom disintegrates to ${ }_{84}^{214} Po$ with a half of $45 \times 10^9$ years by emitting $\operatorname{six} \alpha-$ particles and $n$ electrons. Here, $n$ is
- [KVPY 2012]
The radioactive decay of uranium into thorium is expressed by the equation $_{92}^{238}U \to _{90}^{234}Th + X,$ where $'X'$ is
The radioactive decay of uranium into thorium is expressed by the equation $_{92}^{238}U \to _{90}^{234}Th + X,$ where $'X'$ is
Alpha particles are
Alpha particles are
- [AIPMT 1999]
If $_{92}{U^{238}}$ undergoes successively $8 \alpha$- decays and $6 \beta$- decays, then resulting nucleus is
If $_{92}{U^{238}}$ undergoes successively $8 \alpha$- decays and $6 \beta$- decays, then resulting nucleus is
- [AIIMS 1996]
Some laws/processes are given in Column $I$. Match these with the physical phenomena given in Column $II$ and indicate your answer by darkening appropriate bubbles in the $4 \times 4$ matrix given in the $ORS$.
Column $I$
Column $II$
$(A)$ Transition between two atomic energy levels
$(p)$ Characteristic $X$-rays
$(B)$ Electron emission from a material
$(q)$ Photoelectric effect
$(C)$ Mosley's law
$(r)$ Hydrogen spectrum
$(D)$ Change of photon energy into kinetic energy of electrons
$(s)$ $\beta$-decay
Some laws/processes are given in Column $I$. Match these with the physical phenomena given in Column $II$ and indicate your answer by darkening appropriate bubbles in the $4 \times 4$ matrix given in the $ORS$.
| Column $I$ | Column $II$ |
| $(A)$ Transition between two atomic energy levels | $(p)$ Characteristic $X$-rays |
| $(B)$ Electron emission from a material | $(q)$ Photoelectric effect |
| $(C)$ Mosley's law | $(r)$ Hydrogen spectrum |
| $(D)$ Change of photon energy into kinetic energy of electrons | $(s)$ $\beta$-decay |
- [IIT 2007]