Posts by Alessandro

Total # Posts: 3

physics chemistry
For a PET diagnostic imaging is used 18F with an activity of 5,2 mCi and a T1/2 of 110 min.. How much fluorine 18 is there at the beginning of the exam? Those are the information that i know, it's a problem that i try to resolve, but i arrived to a very low quantity of 18F...

6th grade science
First law: An object in motion stays in motion unless acted upon an out side force. The same for an object at rest Second law:F = M *A Third law: Every action has an equal or opposite reaction.

physical science 9th grade