Solutions
Resources
Pricing
n
nursofia_jasmani
Curipods
2
Plays
0
Copies
0
8 minutes
The half-life of the nuclide radium-225 is 15 days. A pure sample of this nuclide has a mass of 16g. How long will it be before the mass of radium-225 in the sample is 2.0g?
nursofia_jasmani
24 minutes
Light questions
nursofia_jasmani
Made with
🧡
from Norway
© 2024 Curipod AS
Follow us
Company
About us
Blog
Contact us
Pricing
We're hiring
The Curipod learning principles
Merchandise store
Community
Join our community
Ai certificate
Ambassador program
Legal
Privacy policy
State and District Privacy Agreements
Cookie policy
AI in Curipod
Terms of use
GDPR
🧡
Resources
Case study
Training
STAAR test prep
Argumentative writing
Narrative writing
Curipod creators directory
For business
Accessibility
All customizable lessons
Moderation tool
Connectivity issues
CuriCon 2023 - replays
PD resources
