alexandriabritt3672 alexandriabritt3672

04-06-2019
Chemistry

contestada

Radium-223 is a radioactive isotope with a half-life of 11.4 days. how long (in days) will it be before 87.5% of the sample has decayed?

Respuesta :

mohamedshuler mohamedshuler

04-06-2019

Answer:

9.975 days

Explanation:

87.5% of 11.4 is 9.975 you can see this by doing 11.4 * 0.875

Answer Link

Otras preguntas

what is the solution to every system of equation

Which statement about the setting of the excerpt from A Long Way Gone is true? A.The story takes place in three locations and includes multiple time periods. B.

plz help help me plz Possible ways that Earth's atmosphere could be hurt by global warming

Which of the following is a solution to 2x2+2x−12=0

Please help!! 30 points!! Will mark brainliest!!

Which best states how these two passages are different? A) The first passage is meant to be humorous, while the second passage is merely informative. B) The

Policy that prevented europeans from establishing colonies in western hemisphere - __________

What were the main ways people expressed their devotion to God?

Arrhenius theorized that a base is a chemical compound that

Given the value of cos 50° ? 0.6428, enter the sine of a complementary angle. Use an expression relating trigonometric ratios of complementary angles.