Sciencemadness Discussion Board

Science Question

Scubadiver117x - 17-9-2006 at 10:18

A mass of a certain radioactive element decays at a rate of 18.5 billion disintegrations per minute.What is its activity in curies (Ci)?...in becquerels (Bq)?

Nerro - 17-9-2006 at 10:31

18.5 GBq which is about 0.5 Curie... Because a Bq equals an emmision per second and a curie equals 37 billion Bq.

Do your own homework in the future!

[Edited on Sun/Sep/2006 by Nerro]

Scubadiver117x - 17-9-2006 at 10:41

If I could do my own homework I wouldn't need this LOL!!! Does anyone have a more complete answer?

12AX7 - 17-9-2006 at 10:56

And don't crosspost!

Swany - 17-9-2006 at 12:51

What do you mean, more complete?

1 disintegration/second = 1Bq

G, giga, is a prefix for 1 billion. 18.5 billion = 18.5Gx

18.5GBq/37GBq=~.5Ci