Question

What is half life time.

Answer 1

$\huge\mathbb\orange{Hello!!}$

Half-life (symbol t1⁄2) is the time required for a quantity to reduce to half of its initial value. The term is commonly used in nuclear physics to describe how quickly unstable atoms undergo, or how long stable atoms survive, radioactive decay.

Answer 2

Half life is defined as the time required for a quantity to reduce to half it's initial value

It is commonly used in radioactive chemistry and radioactive physics

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