When the radioactive isotope ${}_{88}{Rα}^{226}$ decays in a series by the emission of three alpha (α) and a beta (β) particle, the isotope X which remains undecay is

${}_{83}X^{214}$

${}_{83}X^{218}$

${}_{83}X^{220}$

${}_{83}X^{223}$

Solution

${}_{83}X^{214}$

Due to the emission of 3α particles, the mass number is reduced by 12 while the atomic number is decreased by 6. Due to the emission of β particle, the atomic number is increased by one while there is no change in mass number. Now, resulting mass will be decreased by 12 and atomic number is decreased by 5. So, isotopes X is ₈₃X²¹⁴

Some More Questions From Nuclei Chapter

When ₃Li⁷ nuclei are bombarded by protons, and the resultant nuclei are ₄Be⁸ , the emitted particles will be

The ‘rad’ is the correct unit used to report the measurement of

A photocell is illuminated by a small bright source placed 1 m away. When the same source of light is placed 1 /2 m away, the number of electrons emitted by photocathode would

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Nuclei

When the radioactive isotope ${}_{88}{Rα}^{226}$ decays in a series by the emission of three alpha (α) and a beta (β) particle, the isotope X which remains undecay is

${}_{83}X^{214}$

${}_{83}X^{218}$

${}_{83}X^{220}$

${}_{83}X^{223}$

Some More Questions From Nuclei Chapter

When ₃Li⁷ nuclei are bombarded by protons, and the resultant nuclei are ₄Be⁸ , the emitted particles will be

The ‘rad’ is the correct unit used to report the measurement of

A photocell is illuminated by a small bright source placed 1 m away. When the same source of light is placed 1 /2 m away, the number of electrons emitted by photocathode would

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation

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Email Address

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Nuclei

When the radioactive isotope Rα22688 decays in a series by the emission of three alpha (α) and a beta (β) particle, the isotope X which remains undecay is X21483 X21883 X22083 X22383

Some More Questions From Nuclei Chapter

When 3Li7 nuclei are bombarded by protons, and the resultant nuclei are 4Be8 , the emitted particles will be

The ‘rad’ is the correct unit used to report the measurement of

A photocell is illuminated by a small bright source placed 1 m away. When the same source of light is placed 1 /2 m away, the number of electrons emitted by photocathode would

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation

When the radioactive isotope ${}_{88}{Rα}^{226}$ decays in a series by the emission of three alpha (α) and a beta (β) particle, the isotope X which remains undecay is

${}_{83}X^{214}$

${}_{83}X^{218}$

${}_{83}X^{220}$

${}_{83}X^{223}$

When ₃Li⁷ nuclei are bombarded by protons, and the resultant nuclei are ₄Be⁸ , the emitted particles will be