What percentage of parent isotope is remaining if 1 half life has elapsed?

  1. 6.25%
  2. 12.5%
  3. 25%
  4. 50%
  5. 100%

50%

Environmental & Atmospheric Sciences

You might also like to view...

If the weather forecast predicts the arrival of a warm front to your area for the weekend, should you expect RAIN or CLEAR SKIES?

View
Environmental & Atmospheric Sciences

First published in 1962, the book Silent Spring helped to establish

A) the modern civil rights movement. B) the modern environmental movement. C) the Food and Drug Administration. D) the National Wildlife Federation.

View
Environmental & Atmospheric Sciences

Explain why the presence of free oxygen in our atmosphere marks an important step in the evolution of life on Earth

What will be an ideal response?

View
Environmental & Atmospheric Sciences

Discuss the concentration gradients of carbon dioxide and oxygen in the ocean water column. What will be an ideal response?

View
Environmental & Atmospheric Sciences