The $\alpha$-particle is the nucleus of an atom of

  • A

    Neon

  • B

    Hydrogen

  • C

    Helium

  • D

    Deuterium

Similar Questions

A radioactive element $X$ emits six $\alpha$-particles and four $\beta$-particles leading to ond product ${ }_{82}^{208} Pb$. $X$ is

$\gamma$-decay occurs when

A nucleus of lead $Pb _{82}^{214}$ emits two electrons followed by an $\alpha$-particle. The resulting nucleus will have

  • [KVPY 2011]

Match List $I$ of the nuclear processes with List $II$ containing parent nucleus and one of the end products of each process and then select the correct answer using the codes given below the lists :

List $I$ List $II$
$P.$ $\quad$ Alpha decay  $1.$ $\quad{ }_8^{15} 0 \rightarrow{ }_7^{15} N +\ldots \ldots$.
$Q.$ $\quad$ $\beta^{+}$decay $2.$ $\quad{ }_{92}^{238} U \rightarrow{ }_{90}^{234} Th +\ldots \ldots$.
$R.$ $\quad$Fission $3.$ $\quad{ }_{83}^{185} Bi \rightarrow{ }_{82}^{184} Pb +\ldots \ldots$.
$S.$ $\quad$Proton emission $4.$ $\quad{ }_{94}^{239} Pu \rightarrow{ }_{57}^{140} La +\ldots \ldots$.

Codes: $ \quad \quad P \quad Q \quad R \quad S $ 

  • [IIT 2013]

Consider the following two statements

$A.$ Energy spectrum of $\alpha-$ particles emitted in radioactive decay is discrete

$B.$ Energy spectrum of $ \beta -$ particles emitted in radioactive decay is continuous