gabandgrub0 gabandgrub0

07-09-2021
Chemistry

contestada

What percentage of a radioactive isotope remains after 20.0 days if its half life is 10.0 days?

Respuesta :

jay40891 jay40891

07-09-2021

Answer:

25 %

Explanation:

20 days would mean that there are 2 half lives within that period since the half life is 10 days. After the first half life 50% of the substance remains. After another half life 0.5(50) = 25% remains

Answer Link

Otras preguntas

Which best describes the purpose of the bulleted subheadings in the document?

Conduct research to determine the best network design to ensure security of internal access while retaining public website availability.

Which of the following was NOT a characteristic of the Middle Ages in Western Europe? A. Decreased literacy rates and emphasis on learning and education B. The

Ocean zones can be classified based on distance from Shore into intertidal, costal ocean, and open oceans. True or false ?

What does t stand for in the projectile motion formula?

do y'all like my weed questions?

Which sentence is a scientific statement?A. The sun is constantly emitting undetectable waves.B. Instrumental music sounds better than choral music.C. Studying

6. Which of the following is equivalent to the expression shown? (x - 5)(x + 5) (A) x2 – 10x - 25 (C) x2 – 25 x2 - 10x + 25 (D) x2 + 25 (x–52) (x+5) x²-524 X2-1

DULLL UTC Lonell ahswer. What is the process that authors use to create and develop characters for the reader?

Okay I don’t k isHow to delete this

good job