Beta decay | Physics | Khan Academy

During beta minus decay, a neutron in an unstable nucleus transforms into a proton, releasing a high energy electron and antineutrino in the process. During beta plus decay, a proton in an unstable nucleus transforms into a neutron, releasing a high energy positron and neutrino in the process. Beta particles carry away energy lost by the nucleus and are ionizing radiation.

00:00 - Intro
00:12 - Alpha and beta decay
01:12 - Beta minus decay of carbon-14
04:44 - Beta plus decay of nitrogen-13
07:47 - Neutrinos and antineutrinos
09:09 - Charge conservation
10:14 - Beta decay penetrating power and application

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[linandrea]

You can tell the teacher’s enthusiasm from the way he teaches!😃

[arnavsharma-lmqm]

sir, you are starting to bring back my curiosity back which was dead for a long while!!!

[HakanPeker]

It's the first time I learned something about chemistry. It's a good channel.

[eleanorfarrashzadeh]

I love how excited he is to teach us about this it's so cute and makes me excited and interested to learn😊 alpha beta and gamma radiation and their real life application is so fascinating

[a_____S________W-cg]

This vid is amazing, but pls upload gamma decay also soon, plsss

[DarthJeremy]

mahesh your enthusiasm towards teaching physics is unrivaled/. Thank you for everythign!

[malekqaddarah]

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[فيرو-زق]

شكرا جزيللا على هذا الشرح المبسط والمنظم ^^

[muhammetkurkcu]

This video made me want to study more!

[tirthalily]

This was so simplified and well explained. Thank you!

[FATIMAJWALI]

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[someone]

Thanks for teaching us! You have made it very clear! Keep it up!

[vajragayakwad]

you're the best teacher for physics!!

[someone]

The positron is the electron’s antiparticle right?

[LloydISAMO]

Thanks very well explanation. This will help for my nuclear physics exam.❤❤ 💯👍

[justchary]

How is it possible, that this video has only 189 likes?

[Hiwsgmrskibidi]

I knew there were neutrinos but didn’t know that their were antineutrinos

[someone]

Isn’t the positron the electron’s antiparticle?

[TheJoaveck]

Around 6:00 You talk about a Positron. You say it has the same mass of an electron but the Mass number of the daughter didnt change.
Whats the explanation for that?

Protons and Neutrons have the mass, right? So when the Proton turn into a Positron it should have less mass, right?

[Keithustus]

Alright so how does sunlight convert N to C like this in the atmosphere? (Key to C14 dating)