The decay constant of a radioactive substance is 0.173 `("years")^(-1)`. Therefore:

The decay constant of radioactive substance is 0.173 ("years")^(-1) . Therefore

The decay constant of a radioactive substance is 0.173 (year)""^(-1) . Therefore

The decay constant of a radioactive substance is 0.173 year^(-1) . Therefore,

The decay constant of a radioactive substance is 0.173 year^(-1) . Therefore,

The decay constant of a radioactive sample

The decay constant of a radioactive sample

The decay constant lambda of a radioactive sample:

The decay constant of a radioactive substance is 1 per month. The percentage of radioactive substance left undecayed after two months will be