What percent of a present amount of radioactive radium will remain after 900 years? The half-life of radium is 1,600 years.
A) 45%
B) 25%
C) 65%
D) 68%

Question

​What percent of a present amount of radioactive radium  will remain after 900 years? The half-life of radium is 1,600 years. ​
A) ​45% 
B) ​25% 
C) ​65% 
D) ​68%

Quizplus · Accepted Answer

The Answer of ​What percent of a present amount of radioactive radium  will remain after 900 years? The half-life of radium is 1,600 years. ​
A) ​45% 
B) ​25% 
C) ​65% 
D) ​68%

​What Percent of a Present Amount of Radioactive Radium

What Percent of a Present Amount of Radioactive Radium