As the temperature of a sample of a radioactive element decreases, the half-life will remain the same
<u>Explanation:</u>
Half-life is defined as the time needed for half of the opening material to modify or decay. Half-lives can be estimated from measures on the variation in the mass of a nuclide and the period it gets to occur. In the period of that substance's half-life, half of the primary nuclei will decompose.
Although chemical changes were raced up or delayed down by varying factors such as temperature, concentration, etc, these factors do not affect half-life. Each radioactive isotope will have its unique half-life that is independent of any of these factors.
Answer:
d. oxygen is a pure substance and rocks are mixtures
In science you want to use observations and measurements.
Answer:
specialized if you add one more I cause I'm pretty sure there is supposed to be one more i.
