Element $X$ decays into element $Y$ with a half-life of $3$ days. On March $1$st,the mass of $X$ is $10 \, g$. What will be the masses of $X$ and $Y$ after $6$ days?
- A$X = 2.5 \, g$ and $Y = 7.5 \, g$
- B$X = 5.0 \, g$ and $Y = 5.0 \, g$
- C$X = 7.5 \, g$ and $Y = 2.5 \, g$
- D$X = 10 \, g$ and $Y = 0 \, g$
Explore More
Similar Questions
The decay constant for the nuclide $^{64}Cu$ is $1.6 \times 10^{-5} \, s^{-1}$. Find the activity of a $1 \, mg$ sample of $^{64}Cu$ in $Ci$. (Given: Atomic mass of Copper = $64 \, g/mol$,$1 \, Ci = 3.7 \times 10^{10} \, Bq$)
Medium
View Solution$A$ radioactive material is reduced to $1/8$ of its original amount in $3$ days. If $8 \times 10^{-3} \, kg$ of the material is left after $5$ days,the initial amount of the material is $....... \, g$.
The half-life of radium is $1600 \, \text{years}$. After how many years will $25 \, \text{g}$ of radium remain from $100 \, \text{g}$ of radium?
Difficult
View SolutionIf the time taken for a radioactive substance to decay from $88 \%$ to $77 \%$ is $12 \text{ minutes}$,then the half-life of the substance in minutes is:
The $S.I.$ unit of radioactivity is
Easy
View SolutionVedclass Products
For Students
Vedclass Test Series
Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.
Start Free TrialFor Teachers
Exam Paper Generator
Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.
Try FreeFor Institutes
Online Exam Module
Live online exams with unlimited students, 360° analytics & white-label branding.
See Demo