Compare the graph above to Figure 8.14, which shows the decay of potassium-40. Which element is more radioactive (undergoes radioactive decay more quickly)?
A) uranium-235
B) potassium-40
C) Both are equally radioactive.
A) uranium-235
You might also like to view...
Exclusion Principle: The elements in the periodic table that have completely filled shells or subshells are referred to as
A. noble gases. B. halogens. C. alkali metals. D. transition elements.
Pascal's Principle: A 13,000-N vehicle is to be lifted by a 25-cm diameter hydraulic piston. What force needs to be applied to a 5.0 cm diameter piston to accomplish this? Assume the pistons each have negligible weight.
A. 260 N B. 520 N C. 2600 N D. 5200 N
Mesons consist of
A) quark-antiquark pairs. B) triple gluons. C) lepton-antilepton pairs. D) lepton-quark pairs.
When the speed of an electron is increased the de Broglie wavelength is decreased
a. True b. False Indicate whether the statement is true or false