the half-life of an element is important for determining the _____ of a rock?

Question

A. decomposition rate B. relative age C. absoloute age D.mineral makeup

Answer 1

B.

Half-life shows the time it is needed to decompose the element by 1/2. Half-life never changes just because the number of element decreases.

Answer 2

B. there are various of alternative radiometric relationship procedures used immediately to furnish a lengthy time period of thousands of thousands or billions of years for rocks. those ideas, compared to carbon relationship, somewhat use the relative concentrations of be certain and daughter products in radioactive decay chains. to illustrate, potassium-40 decays to argon-40; uranium-238 decays to steer-206 by different aspects like radium; uranium-235 decays to steer-207; rubidium-87 decays to strontium-87; and so on. those ideas are utilized to igneous rocks, and are generally considered as giving the time when you consider that solidification. The isotope concentrations ought to nicely be measured very wisely, yet isotope concentrations are not to any extent further dates. To derive a lengthy time period from such measurements, unprovable assumptions must be made alongside with: The initiating situations are common (to illustrate, that there replaced into no daughter isotope cutting-edge on the initiating, or that all of us comprehend how a lot replaced into there). Decay charges have continually been consistent. platforms were closed or remoted so as that no be certain or daughter isotopes were lost or extra.

Answer 3

B. relative age

Its not possible to calculate the absolute age because its very hard to tell the number of half-life it has undergone.

Answer 4

B. relative age because there's uncertainty so you can't determine absolute age

Answer 5

B

Answer 6

B