Question

the time in which radio active substance become half of its initial amount is called​

Answer 1

Answer:

Time in which the amount of radioactive substance becomes half its initial amount is called the ' Half Life '...

And its formula is t(half life) = ln2/k

Where k= decay constant....

Answer 2

The time in which radio active substance become half of its initial amount is called​ Half Life.

Explanation:

• The half life is the time taken for any radio active to reduce into half of the original amount is called the half life

• This Half life is calculated using the formula $\bold{N_t = N_0e^{{- \lambda}t}}}$

• In the formula $N_t$  is the value at the given time t

• $N_0$ is the initial amount of the substance

• $\lambda$ is the decay constant

• T is the time taken

• This half life helps in the dating of artifacts and also guides the doctors to use safe radioactive tracers.
• This also helps archaeologists to calculate the age of organisms.

Learn more about Half life:

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What is the process by which atomic nuclei spontaneously decay called?

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A radioactive substance decays 25%

of initial in 16 days. Its half life

period is:

(A) 8 days

(B) 28 days

(C) 32 days​