Half life | Radioactivity | Physics | FuseSchool
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- čas přidán 9. 12. 2020
- Half life | Radioactivity | Physics | FuseSchool
This atom has an unstable nucleus. Any moment now it may undergo radioactive decay. Any time now... Or it may not! We just don’t know, as decay is a random event. We cannot predict when any single nucleus will decay. But we can say, if we have a large enough number of atoms, then decay will happen somewhere in a sample. If we time how long it takes for half of the atoms to undergo decay we have a measure, half-life, of a rate of decay.
CREDITS
Animation & Design: Waldi Apollis
Narration: Dale Bennett
Script: Alistair Haynes
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Gordon Freeman
always wanted to learn about half life from gordon freeman
there are 3 dashes in the title of this video. HALF LIFE 3 CONFIRMED
Rise and Shine Mr. Freeman
Wake up, Mr. Freeman. Wake up and smell the ashes
@@scarlettekk I didn't see you get on.
Bro i was lookint for half life 3
What is meant by the initial amount of C-14, how do we measure the initial amount in comparison to what is left at the moment?
pls three version half life 3 confirmed
About that beer I owed ya!
Great job! Keep up the good work, also this is the first vid on ur channel that I watched.
Welcome aboard!
I FEEL LIKE A GREAT BURDEN IS CLEARED ON ME . CONGRATULATIONS
Sorry thanks
You're most welcome!
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POV: Your here for you science Online Class
Well you should be looking at improving your english
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@@bobsmith3291 and what was the point of that. What are you going to gain from your stupid little snarky comment to some person you don’t know on CZcams. So they made a spelling mistake? Honestly get a life
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Concept is cleared. Thank you
Excellent! Most welcome!
@@fuseschool thank you
Great video! Thanks!
No problem!
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Awesome
Thank you!
:25 what was that? We can't predict.... then continues on explaining that we can? How do you test with certainty, the half life of anything if its only good for 55,000 years? Just asking. Looking for answers.
Although you cannot predict when one particular atom will decay you can say, with certainty, the chance it will decay. The half life of an isotope tells you that half the atoms will have decayed in that time. Now consider the 50% which are left - in the next half life 50% of them will have decayed, leaving only a quarter of the original isotope after 2 half lives. To say the decay is random maybe gives the wrong impression. You can say, with certainty, that each atom, in a substance with half-life of 55,000 years has a 50% chance of decaying during those 55,000 years, but which of the atoms actually does decay is random!
@Sean Nicholson Most welcome!
Formula for half life
Can we say that randomness, is random to us just because we have not figured out a rule for it?
To say the decay is random maybe gives the wrong impression. You can say, with certainty, that each atom in a substance with half-life of 55,000 years has a 50% chance of decaying during those 55,000 years, but which of the atoms actually does decay is random!
I understand
The 1960s were 100 years ago? #confused #oberon #mindblown
Hey do you conduct any examinations?
Hi there! We don't, we provide educational materials that are often use to prepare for tests and exams.
@@fuseschool can you please tell me that in which board do i have to study to become an engineer, right now I am in cambridge igcse board 10th
@@fuseschool okay please teach about radioactive decay if you can
when
Good video
Thanks!
Thx
No problem!
That was confusing #pleasewatersir
Why is it called "half-life" not a full life? I don't get it :(
Half-life means the period of time required for one half of the atomic nuclei of a radioactive sample to decay.
@@fuseschool so its called "half-life" because its only half the nuclei decaying?
Basically, yes. You can say that each atom in a substance has a 50% chance of decaying during a certain period of time, but which of the atoms actually does decay is random!
@@fuseschool ok its clearer in my head now, thanks alot ^^
Happy to help!
😁
helllooo
science wasak na utak ko
Me: here because I have finals
FIRST!