Radioactivity
NUCLEAR PHYSICS

147777 In the nuclear decay given below
\({ }_{\mathrm{Z}}^{\mathrm{A}} \longrightarrow{ }_{\mathrm{Z}+1}^{\mathrm{A}} \mathrm{Y} \longrightarrow{ }_{\mathrm{Z}-1}^{\mathrm{A}-4} \mathrm{~B}^* \longrightarrow_{\mathrm{Z}-1}^{\mathrm{A}-4} \mathrm{~B}\)
the particles emitted in the sequence are

1 $\beta, \alpha, \gamma$
2 $\gamma, \beta, \alpha$
3 $\beta, \gamma, \alpha$
4 $\beta, \alpha, \gamma$
NUCLEAR PHYSICS

147782 A free neutron decays spontaneously into

1 a proton, an electron and anti-neutrino
2 a proton, an electron and a - neutrino
3 a proton and an electron
4 a proton, and an electron, a neutrino and an anti-neutrino.
NUCLEAR PHYSICS

147784 The nucleus ${ }_{6} \mathrm{C}^{12}$ absorbs an energetic neutrons and emits a beta particle $(\beta)$. The resulting nucleus is

1 ${ }_{7} \mathrm{~N}^{14}$
2 ${ }_{7} \mathrm{~N}^{13}$
3 ${ }_{5} \mathrm{~B}^{13}$
4 ${ }_{6} \mathrm{C}^{13}$
NUCLEAR PHYSICS

147757 The particles not emitted by radioactive substance are

1 gamma rays
2 electros
3 protons
4 He nuclei
NUCLEAR PHYSICS

147558 Consider the following radioactive decay
$\text { process }{ }_{84}^{218} \mathbf{A} \stackrel{\alpha}{\longrightarrow} \mathbf{A}_{1} \stackrel{\beta^{-}}{\longrightarrow} \mathbf{A}_{2} \stackrel{\gamma}{\longrightarrow} \mathbf{A}_{3} \stackrel{a}{\longrightarrow} \mathbf{A}_{4}$
$\stackrel{\beta^{+}}{\longrightarrow} \mathbf{A}_{5} \stackrel{\gamma}{\longrightarrow} \mathbf{A}_{6}$
The mass number and the atomic number of $A_{6}$ are given by:

1 211 and 80
2 210 and 80
3 210 and 82
4 10 and 84
NUCLEAR PHYSICS

147777 In the nuclear decay given below
\({ }_{\mathrm{Z}}^{\mathrm{A}} \longrightarrow{ }_{\mathrm{Z}+1}^{\mathrm{A}} \mathrm{Y} \longrightarrow{ }_{\mathrm{Z}-1}^{\mathrm{A}-4} \mathrm{~B}^* \longrightarrow_{\mathrm{Z}-1}^{\mathrm{A}-4} \mathrm{~B}\)
the particles emitted in the sequence are

1 $\beta, \alpha, \gamma$
2 $\gamma, \beta, \alpha$
3 $\beta, \gamma, \alpha$
4 $\beta, \alpha, \gamma$
NUCLEAR PHYSICS

147782 A free neutron decays spontaneously into

1 a proton, an electron and anti-neutrino
2 a proton, an electron and a - neutrino
3 a proton and an electron
4 a proton, and an electron, a neutrino and an anti-neutrino.
NUCLEAR PHYSICS

147784 The nucleus ${ }_{6} \mathrm{C}^{12}$ absorbs an energetic neutrons and emits a beta particle $(\beta)$. The resulting nucleus is

1 ${ }_{7} \mathrm{~N}^{14}$
2 ${ }_{7} \mathrm{~N}^{13}$
3 ${ }_{5} \mathrm{~B}^{13}$
4 ${ }_{6} \mathrm{C}^{13}$
NUCLEAR PHYSICS

147757 The particles not emitted by radioactive substance are

1 gamma rays
2 electros
3 protons
4 He nuclei
NUCLEAR PHYSICS

147558 Consider the following radioactive decay
$\text { process }{ }_{84}^{218} \mathbf{A} \stackrel{\alpha}{\longrightarrow} \mathbf{A}_{1} \stackrel{\beta^{-}}{\longrightarrow} \mathbf{A}_{2} \stackrel{\gamma}{\longrightarrow} \mathbf{A}_{3} \stackrel{a}{\longrightarrow} \mathbf{A}_{4}$
$\stackrel{\beta^{+}}{\longrightarrow} \mathbf{A}_{5} \stackrel{\gamma}{\longrightarrow} \mathbf{A}_{6}$
The mass number and the atomic number of $A_{6}$ are given by:

1 211 and 80
2 210 and 80
3 210 and 82
4 10 and 84
NUCLEAR PHYSICS

147777 In the nuclear decay given below
\({ }_{\mathrm{Z}}^{\mathrm{A}} \longrightarrow{ }_{\mathrm{Z}+1}^{\mathrm{A}} \mathrm{Y} \longrightarrow{ }_{\mathrm{Z}-1}^{\mathrm{A}-4} \mathrm{~B}^* \longrightarrow_{\mathrm{Z}-1}^{\mathrm{A}-4} \mathrm{~B}\)
the particles emitted in the sequence are

1 $\beta, \alpha, \gamma$
2 $\gamma, \beta, \alpha$
3 $\beta, \gamma, \alpha$
4 $\beta, \alpha, \gamma$
NUCLEAR PHYSICS

147782 A free neutron decays spontaneously into

1 a proton, an electron and anti-neutrino
2 a proton, an electron and a - neutrino
3 a proton and an electron
4 a proton, and an electron, a neutrino and an anti-neutrino.
NUCLEAR PHYSICS

147784 The nucleus ${ }_{6} \mathrm{C}^{12}$ absorbs an energetic neutrons and emits a beta particle $(\beta)$. The resulting nucleus is

1 ${ }_{7} \mathrm{~N}^{14}$
2 ${ }_{7} \mathrm{~N}^{13}$
3 ${ }_{5} \mathrm{~B}^{13}$
4 ${ }_{6} \mathrm{C}^{13}$
NUCLEAR PHYSICS

147757 The particles not emitted by radioactive substance are

1 gamma rays
2 electros
3 protons
4 He nuclei
NUCLEAR PHYSICS

147558 Consider the following radioactive decay
$\text { process }{ }_{84}^{218} \mathbf{A} \stackrel{\alpha}{\longrightarrow} \mathbf{A}_{1} \stackrel{\beta^{-}}{\longrightarrow} \mathbf{A}_{2} \stackrel{\gamma}{\longrightarrow} \mathbf{A}_{3} \stackrel{a}{\longrightarrow} \mathbf{A}_{4}$
$\stackrel{\beta^{+}}{\longrightarrow} \mathbf{A}_{5} \stackrel{\gamma}{\longrightarrow} \mathbf{A}_{6}$
The mass number and the atomic number of $A_{6}$ are given by:

1 211 and 80
2 210 and 80
3 210 and 82
4 10 and 84
NUCLEAR PHYSICS

147777 In the nuclear decay given below
\({ }_{\mathrm{Z}}^{\mathrm{A}} \longrightarrow{ }_{\mathrm{Z}+1}^{\mathrm{A}} \mathrm{Y} \longrightarrow{ }_{\mathrm{Z}-1}^{\mathrm{A}-4} \mathrm{~B}^* \longrightarrow_{\mathrm{Z}-1}^{\mathrm{A}-4} \mathrm{~B}\)
the particles emitted in the sequence are

1 $\beta, \alpha, \gamma$
2 $\gamma, \beta, \alpha$
3 $\beta, \gamma, \alpha$
4 $\beta, \alpha, \gamma$
NUCLEAR PHYSICS

147782 A free neutron decays spontaneously into

1 a proton, an electron and anti-neutrino
2 a proton, an electron and a - neutrino
3 a proton and an electron
4 a proton, and an electron, a neutrino and an anti-neutrino.
NUCLEAR PHYSICS

147784 The nucleus ${ }_{6} \mathrm{C}^{12}$ absorbs an energetic neutrons and emits a beta particle $(\beta)$. The resulting nucleus is

1 ${ }_{7} \mathrm{~N}^{14}$
2 ${ }_{7} \mathrm{~N}^{13}$
3 ${ }_{5} \mathrm{~B}^{13}$
4 ${ }_{6} \mathrm{C}^{13}$
NUCLEAR PHYSICS

147757 The particles not emitted by radioactive substance are

1 gamma rays
2 electros
3 protons
4 He nuclei
NUCLEAR PHYSICS

147558 Consider the following radioactive decay
$\text { process }{ }_{84}^{218} \mathbf{A} \stackrel{\alpha}{\longrightarrow} \mathbf{A}_{1} \stackrel{\beta^{-}}{\longrightarrow} \mathbf{A}_{2} \stackrel{\gamma}{\longrightarrow} \mathbf{A}_{3} \stackrel{a}{\longrightarrow} \mathbf{A}_{4}$
$\stackrel{\beta^{+}}{\longrightarrow} \mathbf{A}_{5} \stackrel{\gamma}{\longrightarrow} \mathbf{A}_{6}$
The mass number and the atomic number of $A_{6}$ are given by:

1 211 and 80
2 210 and 80
3 210 and 82
4 10 and 84
NUCLEAR PHYSICS

147777 In the nuclear decay given below
\({ }_{\mathrm{Z}}^{\mathrm{A}} \longrightarrow{ }_{\mathrm{Z}+1}^{\mathrm{A}} \mathrm{Y} \longrightarrow{ }_{\mathrm{Z}-1}^{\mathrm{A}-4} \mathrm{~B}^* \longrightarrow_{\mathrm{Z}-1}^{\mathrm{A}-4} \mathrm{~B}\)
the particles emitted in the sequence are

1 $\beta, \alpha, \gamma$
2 $\gamma, \beta, \alpha$
3 $\beta, \gamma, \alpha$
4 $\beta, \alpha, \gamma$
NUCLEAR PHYSICS

147782 A free neutron decays spontaneously into

1 a proton, an electron and anti-neutrino
2 a proton, an electron and a - neutrino
3 a proton and an electron
4 a proton, and an electron, a neutrino and an anti-neutrino.
NUCLEAR PHYSICS

147784 The nucleus ${ }_{6} \mathrm{C}^{12}$ absorbs an energetic neutrons and emits a beta particle $(\beta)$. The resulting nucleus is

1 ${ }_{7} \mathrm{~N}^{14}$
2 ${ }_{7} \mathrm{~N}^{13}$
3 ${ }_{5} \mathrm{~B}^{13}$
4 ${ }_{6} \mathrm{C}^{13}$
NUCLEAR PHYSICS

147757 The particles not emitted by radioactive substance are

1 gamma rays
2 electros
3 protons
4 He nuclei
NUCLEAR PHYSICS

147558 Consider the following radioactive decay
$\text { process }{ }_{84}^{218} \mathbf{A} \stackrel{\alpha}{\longrightarrow} \mathbf{A}_{1} \stackrel{\beta^{-}}{\longrightarrow} \mathbf{A}_{2} \stackrel{\gamma}{\longrightarrow} \mathbf{A}_{3} \stackrel{a}{\longrightarrow} \mathbf{A}_{4}$
$\stackrel{\beta^{+}}{\longrightarrow} \mathbf{A}_{5} \stackrel{\gamma}{\longrightarrow} \mathbf{A}_{6}$
The mass number and the atomic number of $A_{6}$ are given by:

1 211 and 80
2 210 and 80
3 210 and 82
4 10 and 84