how can a scientist assess whether a pure niobium (nb) sample is responsible for contaminating the lab with…

how can a scientist assess whether a pure niobium (nb) sample is responsible for contaminating the lab with radioactivity? test the niobium sample to see whether it now contains other elements. test the niobium sample for the presence of niobium oxide compounds. heat the niobium, and see if the level of radioactivity in the lab increases. place the niobium under pressure, and see if the level of radioactivity in the lab increases.

how can a scientist assess whether a pure niobium (nb) sample is responsible for contaminating the lab with radioactivity? test the niobium sample to see whether it now contains other elements. test the niobium sample for the presence of niobium oxide compounds. heat the niobium, and see if the level of radioactivity in the lab increases. place the niobium under pressure, and see if the level of radioactivity in the lab increases.

Answer

Answer:

Heat the niobium, and see if the level of radioactivity in the lab increases.

Explanation:

Step1: Understand radioactivity concept

Radioactivity can be affected by energy - input changes.

Step2: Analyze each option

  • Testing for other elements only checks for impurities, not radioactivity source.
  • Testing for niobium oxide compounds is about chemical composition, not radioactivity origin.
  • Heating can release radioactive particles if niobium is radioactive source.
  • Placing under pressure is not a typical way to test for radioactivity source from a sample.