Question

Half- life of thorium is 24 days. how long will take it for 1 gram of thorium to reduce to 1/8 gram . explain it?

Answer 1

The time is `=72days`

Explanation:

The initial amount is `m_0=1g`

The half life of thorium is `t_(1/2)=24days`

This means that after `24 days`, the amount remaining is `=1/2g`

In `48 days`, the amount remaining is `=1/4g`

The amount will reduce to `=1/8g` in

`T=3xx24=72days`