Actinium - Periodic Table of Videos

A new and improved Actinium video.
More links and info in full description ↓↓↓

With thanks to the Oak Ridge National Laboratory for the Actinium pictures.

And thanks to Charles DeSorcy.

This video features Professor Sir Martyn Poliakoff.

CORRECTION: Actinium-225 has a half life of 10 days.

[phaser]

Why do I watch these? I never miss one, I'm a 58 year old server administrator and have never had anything to do with chemistry, but I can't stop! They're so interesting!

[Soaring-Dragon]

Please never stop these videos, these are fuels of inspiration

[mindblown]

Yay! A new video. We miss you in your absences professor.

[joelkumlin]

I don't usually leave comments - but Ac-225 has a half-life of 10 days not 10 hours (and I haven't seen this correction yet). It is quite a critical difference when it comes to clinical application.

Ac-225 is an isotope of interest because of the "longer" half-life. It provides time to localize a radiolabelled targeting vector (such as an antibody) which can take 24-72 hours depending on the vector. A 10 hour half-life alpha emitter would destroy much more healthy tissue prior to arriving at the target which are typically cancer cells.

Thank you for making this video!

[edumeli]

Finally a new periodic video, this is a special day

[leosedf]

Ακτίνα yes, it's used in modern Greek too and it means beam

[jasperkouwenberg]

I work with Ac225, and I want to add that a lot of groups are looking at chemical constructs that can retain the isotope after decay. The actinium (and much of its daughters) experience a significant recoil due to the large momentum of the emitted alpha particle. Antibodies will loose the isotope after decay, which can be very toxic. Around 80% of the nuclear energy is emitted after the first radioactive decay of Ac225.
Great video as always!!

[hck]

He was gone for a while cause he was reading a book about Helium. He just couldn't put it down.

[alexlandherr]

My favorite chemistry/physics channel!

[sergioarias]

I always enjoy all your videos. I think it would be a good idea make a video explaining the main subfields of chemistry (Inorganic, Organic, Nuclear, Analytical, etc). Thanks for these amazing videos

[Nova-cjqh]

I love it when there is a new video released on this channel

[bruinflight]

Yay! Great to see the prof at it again! Keep 'em up!!!

[chriskosin]

I love his excitement with the hand waiving!!

[TheEScrapMan]

actinuim. One of my favorite elements. Great video!

[tylerjacobson]

I could just listen to the professor talk all day. . .

[AeronHale]

I love watching you guys.
I've learned a ton over the years from this channel.

[andrewkovnat]

Almost one million subscribers! I can't wait what they will have in store for this momentous occasion!

[velialiyev]

İ like to hear on chemistry from you professor. Becauseİ can understand your speaking easily. You are my virtual teacher on youtube. Thank you!

[burrowingduck]

Ac-227 is another actinium isotope with a practical application. With a half life of over 20 years, Ac-227 is used as a precursor to Ra-223 which is used to treat prostate cancer metastases in bone.

[_Solaris]

I like this guy. He keeps things foundational and doesn't patronise us.