Question

A radioactive element has half life period 800 yrs. After 6400 yrs what amount will remain

Solution

Correct option is

1/256

          

                .

SIMILAR QUESTIONS

Q1

The half life of 131I is 8 days. Give a sample of 131I at time t = o, we can assert that

Q2

The mass of one mole of electrons is

Q3

The increasing order for  the values of e/m is

Q4

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Q5

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Q6

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Q7

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Q8

What percentage of original radioactive atoms is left after four half lives

Q9

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Q10

A nucleus  emits one alpha particle and two β-particle The resulting nucleus is