Original post by Tayla1998
I don't understand how to calculate the answer to this question: The half-life of one radioactive isotope is 71 days. By starting with 16g, calculate the mass of the remains that are left of this isotope after 213 days.
doesn't this mean every 71 days 1 half-life is completed i.e. the mass of the radioactive isotope is halved?
Original post by Tayla1998
I don't understand how to calculate the answer to this question: The half-life of one radioactive isotope is 71 days. By starting with 16g, calculate the mass of the remains that are left of this isotope after 213 days.
Three half lives have passed after 213 days (213/71 = 3)
After one half life 8g remains
After two half lives 4g remains
After three half lives 2g remains
Original post by charco
Three half lives have passed after 213 days (213/71 = 3)
After one half life 8g remains
After two half lives 4g remains
After three half lives 2g remains
After one half life 8g remains
After two half lives 4g remains
After three half lives 2g remains
Thanks for your help.
Quick Reply
Related discussions
- Physics radioactivity
- Physics Help
- physics radioactivity count rate gcse question
- Student loan denied- long residence
- Revamping Vamps- a lifestyle and wellbeing blog
- The people barely reply to me
- Question 3 a and b on topic 26.5 of the Jim breithaupt AQA physics book
- How much ejaculate is normal
- pretty bored rn anyone doing anything interesting??
- Am I qualified for student Finance
- Gcse English language paper 1 question 2
- Lived in UK half life. Student Finance says I am not eligible
- uni of nottingham law
- Behind on my art coursework
- AQA GCSE Combined Science: Trilogy - Physics Paper 1 (Higher) 8464/P/1H [Exam Chat]
- Trinity College Dublin
- How should i layout my personal statement?
- feel unsure :/
- I feel physically exhausted
- Half life find x
Latest
Trending
Last reply 6 days ago
Im confused about this chemistry question, why does it form these productsTrending
Last reply 6 days ago
Im confused about this chemistry question, why does it form these products