A scientist notices that a lump of niobium is warm to the touch and wonders if nuclear reactions are taking place in the metal.
How can she find out? A. Measure the metal’s temperature.
B. Check for the presence of alpha, beta, and gamma particles.
C.Look for the presence of niobium compounds.
D. Place the niobium in a pressurized container, and see if the lump becomes warmer.
<span>Of the answers listed option B looks like the most complete. Ie "Check for the presence of alpha, beta, and gamma particles." the significant presence of these particles is a specific indicator of radioactive decay, i.e: unstable atoms spontaneously undergoing a nuclear reaction.</span>
The periodic table of elements arranges all of the known chemical elements in an informative array. Elements are arranged from left to right and top to bottom in order of increasing atomic number. Order generally coincides with increasing atomic mass. ... For instance, all the group 18 elements are inert gases.
