A 1.076 gram sample of Thorium-Z has a half life of exactly 517 minutes. It was brought into the Great Basin Lab in the morning and set up in a half life experiment. The sample showed an activity of 10,000 counts per minute 9:00 AM What was the activity in counts per minute 24 hours later? Neglect background count.

• 1,445 counts per minute 24 hours later
• 2,845 counts per minute 24 hours later
• 3,016 counts per minute 24 hours later
• 999 counts per minute 24 hours later
• 822 counts per minute 24 hours later