14 күн бұрын
28 күн бұрын
Ай бұрын
Ай бұрын
Ай бұрын
Ай бұрын
2 ай бұрын
2 ай бұрын
2 ай бұрын
Пікірлер
@karhukivi 2 күн бұрын
It all depends on how long a half-life you need to consider an isotope "stable". E.g. Xenon-124 has a half-life of 1.8x10²² years and Bismuth-209 2x10^19 years, would you consider them stable?
@TheChemNerd44 Күн бұрын
Elements that have isotopes that never decay are considered stable. It’s not subjective at all; if an isotope decays radioactively, it’s unstable.
@karhukivi Күн бұрын
@@TheChemNerd44 No such thing as "never"!! You didn't read or understand my comment. Bismuth-209 was considered to be stable but it is radioactive with a half life of twenty trillion years. Is that long enough for you to say "never"?
@karhukivi Күн бұрын
@@TheChemNerd44 A British trillion was 10^18 but a US trillion is 10^12, so to be more definite Bismuth-209 has a half-life of 20 million million million years (= 2x10^19y). Would you consider that stable?
@TheChemNerd44 Күн бұрын
@@karhukivi If it decays, then it’s unstable. It’s not a matter of “if I consider it”. It decays, so it’s unstable.
@karhukivi Күн бұрын
@@TheChemNerd44 It is quite likely that all elements and all their isotopes are unstable, just a question of how long the half-life is. I'm wondering if you understand that a very long half life implies a very slow decay rate? For example the term "observationally stable" is applied to Au-197 because a decay hasn't been observed (yet) and that can be due to a very long half-life.
@TallinuTV 4 күн бұрын
Interesting! I assumed there was SOME hanging around in nature, just in insignificant quantities so it was really hard to find… Also, Molybdenum as a 5 syllable word? 😅
@rafaelcalderabebber1198 5 күн бұрын
Thermochemistry is a really fun part of chemistry
@TheChemNerd44 5 күн бұрын
Indeed it is! I hope you enjoyed the video!
@Fetherko 5 күн бұрын
1:40 Speak clearly
@fuccasound3897 6 күн бұрын
Does the half life differ for each isotope and what are they?
@TheChemNerd44 6 күн бұрын
The half-life does differ for each isotope. If you're interested on the specific half-lives, the information is on ptable.com
@fuccasound3897 6 күн бұрын
@@TheChemNerd44 Thanks for that, i didn't know about ptable.
@matthewanderson7824 10 күн бұрын
Museum OTS
@TheoyGordon 12 күн бұрын
Ad
@aqdrobert 13 күн бұрын
We need to reserve spaces for Nth Metal, Dilithium, Unobtanium, Adamantium and Mithril.
@aqdrobert 14 күн бұрын
I have a sample of lead that USED to be Technetium, I think.
@user-ue1lg5xe2d 15 күн бұрын
I thought this was a fake element at first and thought I missed out on the latest science update. It has always been there and interestingly on my paper chart it has no mass listed like the other elements, likely because no stability. I was flabbergasted
@benpoole9505 15 күн бұрын
Love seeing Technetium finally getting some love, but that pronunciation of “Molybdenum” is like nails on a chalkboard to me.
@TheChemNerd44 15 күн бұрын
It has different pronunciations depending on your accent/region.
@davevann9795 15 күн бұрын
Need to pronounce molybdenum correctly: muh-LIB-duh-num.
@TheChemNerd44 15 күн бұрын
It has multiple pronunciations depending on your accent/region.
@TheChemNerd44 16 күн бұрын
Check out my playlist for more chemistry theory like this! kzbin.info/www/bejne/mHTSqZqXd92JbpY
@TheChemNerd44 16 күн бұрын
Check out my playlist for more chemistry theory like this! kzbin.info/www/bejne/mHTSqZqXd92JbpY
@TheChemNerd44 16 күн бұрын
Check out my playlist for more chemistry theory like this! kzbin.info/www/bejne/mHTSqZqXd92JbpY
@rafaelcalderabebber1198 16 күн бұрын
Your channel is really cool!
@TheChemNerd44 16 күн бұрын
Thank you for your support! I hope you like the video!
@Oganessonproductions 17 күн бұрын
Wait. Elements beyond my number exist-
@TheChemNerd44 17 күн бұрын
Haha... maybe.
@einmaniac3360 18 күн бұрын
never knew alt history could go THIS far back
@SapphirePhoenix7 18 күн бұрын
Lovin the Outer Wilds music
@TheChemNerd44 18 күн бұрын
Thank you for your support!
@Marinealver 18 күн бұрын
Once we discover Technetium crystals we will have Warp Drive!
@jackrhslgd 18 күн бұрын
wow this is so educational
@TheChemNerd44 18 күн бұрын
Thank you for your support! I hope you enjoyed the video!
@gerz1197 19 күн бұрын
Out of all the elements, why choose carbon and silicon
@TheChemNerd44 19 күн бұрын
They're both in Group 14, so they both have 4 valence electrons. Therefore, some theorists like to propose claims that Silicon can function as Carbon and vice versa.
@typicalminecraft7098 19 күн бұрын
I love Thsis cuz its very educational
@timedeathe 19 күн бұрын
0:23 correction it technically does but in such low quantities and for brief amounts of times it's barely worth mentioning
@timedeathe 19 күн бұрын
An example are the rare TC rich stars normally red giants
@timedeathe 19 күн бұрын
There's also Przybylski's star which is it's own rabbit hole
@TheChemNerd44 19 күн бұрын
I guess that depends on what you define as nature. But yes, you're correct, it is synthesized in stars without human interference.
@starburst98 19 күн бұрын
What about in an alloy? Use other atoms as stabilization.
@TheChemNerd44 19 күн бұрын
There are compounds that contain Technetium... but are they truly stable until the end of time? That's a question I cannot answer, as I do not hold the information. But I'm sure some research could answer your question!
@dragonfury1565 19 күн бұрын
I cant believe that carbon dioxide is a gas that animals can produce as a byproduct, and silicon dioxide is fricking sand Honestly the idea of a switch like this happening and your lungs suddenly being full of sand sounds rather horrifying and very painful
@TheChemNerd44 19 күн бұрын
Indeed, it would not end well for life. It is very interesting how different the two compounds are!