The half-life of helium-5 is 7.6 × 10-22 seconds, and the half-life o

1.	The half-life of helium-5 is 7.6 × 10-22 seconds, and the half-life of helium-9 is 7 × 10-21 seconds. Approximately how many times greater is the half-life of helium-9 than that of helium-5?
Answer» Answer: 49/54 TIMES GREATER (I THINK) Step-by-step EXPLANATION: (7 × 10-21)/(7.6 × 10-22)=49/54

The half-life of helium-5 is 7.6 × 10-22 seconds, and the half-life of helium-9 is 7 × 10-21 seconds. Approximately how many times greater is the half-life of helium-9 than that of helium-5?

Answer»

Answer:

49/54 TIMES GREATER (I THINK)

Step-by-step EXPLANATION:

(7 × 10-21)/(7.6 × 10-22)=49/54