Solution Found!
Technetium-99m is an ideal radioisotope for scanning organs because it has a half-life
Chapter 0, Problem 5.31(choose chapter or problem)
Technetium-99m is an ideal radioisotope for scanning organs because it has a half-life of 6.0 h and is a pure gamma emitter. Suppose that 80.0 mg were prepared in the technetium generator this morning. How many milligrams of technetium-99m would remain after the following intervals?
a. one half-life
b. two half-lives
c. 18 h d. 24 h
Questions & Answers
QUESTION:
Technetium-99m is an ideal radioisotope for scanning organs because it has a half-life of 6.0 h and is a pure gamma emitter. Suppose that 80.0 mg were prepared in the technetium generator this morning. How many milligrams of technetium-99m would remain after the following intervals?
a. one half-life
b. two half-lives
c. 18 h d. 24 h
ANSWER:Step 1 of 7
Radioactive disintegration
The nucleus of some atoms will be highly unstable; therefore, it decays into a stable nucleus by emission of radiation. These emissions include alpha, beta, and gamma radiations.
Alpha particles are identical to the Helium nucleus and decrease the radioactive nucleus's atomic and mass numbers. Beta particles are similar to an electron and increase the atomic number of the nucleus. Gamma particles are energized photons.
The emission of these radiations constitutes nuclear reactions. Alpha and beta emissions change the identity of the nucleus as it changes its atomic number.