99.7k views
3 votes
What is the mass of a 10 gram sample of potassium-42 that will remain unchanged after 12.4 hours

User Heiberg
by
4.2k points

1 Answer

2 votes

Answer:

ok

Step-by-step explanation:

I accutly don't know the answer sorry

User Artur Grigio
by
4.9k points