A patient is given 0.050 mg of technetium-99 m (where m means metastable—an unstable but long-lived state), a radioactive isotope with a half-life of about 6.0 hours. How long until the radioactive isotope decays to 1.3×10−2 mg ?

we have a patient has given 0.0 50 mg of technetium 99 am where it means just met a stable and unstable but long live state. It's a radioactive isotope with a half life off point off six hours.

Explanation:

solute : a solute is a substance that is dissolved in another substance is known as a solvent. it is mixed with a special mixture know as homogeneous mixture.

solvent: a solvent is a substance that dissolved a solute, which results in a solution is known as solvent.

a compound is a molecule made of atoms from different elements.

a. by the combination of an unlimited number of elements