Problem 1
Define radioactivity.
Problem 1
Do all isotopes have a half-life? Explain your answer.
Problem 1
Given that many elements are metals, suggest why it would be unsafe to have radioactive materials in contact with acids.
Problem 1
According to Einstein's equation, the conversion of \(1.00 \mathrm{~g}\) of matter into energy generates how much energy?
Problem 2
Many alpha-emitting radioactive substances are relatively safe to handle, but inhaling radioactive dust can be very dangerous. Why?
Problem 2
Give an example of a radioactive element. How do you know if it is radioactive?
Problem 2
How much matter needs to be converted to energy to supply \(400 \mathrm{~kJ}\) of energy, the approximate energy of \(1 \mathrm{~mol}\) of \(\mathrm{C}-\mathrm{H}\) bonds? What conclusion does this suggest about energy changes of chemical reactions?
Problem 2
Which is more radioactive- an isotope with a long half-life or an isotope with a short half-life?
Problem 2
Name two isotopes that have been used as tracers.
Problem 3
Explain how radioactive dating works.
