Everything You Need to Know About Isotopes

What did you learn about Isotopes?

Thank you very much for the great explanation, Neil! You are the best! 😊

Loved the thumbnail

Neil, you just made me want to go back to H.S.

Ummm I thought I knew about this but it’s confusing me now. Neil’s explanation is always understandable but this time I’m not following….😮

Thanks a lot

Hey startalk, your shows are awesome. Can you take out that noisy guy out of your show. He is very irritating.

Allegedly, they are 6-foot 3-inches, weigh 215 pounds, have orange-colored skin and can't master the English language.

Woah now I know what my chemistry teacher was talking about

Neil's eyes almost identical to Einstein's, I guess from thinking too much about almost everything!

😂 please publish something in the past 20 years thats worthwhile please.

The is some evidence for natural Plutonium element 94.

Great explanation, thanks

We are black shyam

We are Black shyam

But, how do you know the number of carbon fourteen atoms at the time of death of the organism? Aren't you using present day number of carbon 14 atoms compared to the number at time if death to do the dating?

This guy is not a scientist...he is an activist

The greatest show on earth 😍

Great source of science, thanks Dr. Tyson and the other gentleman.

How does one remember all those facts?

Shutup, Kneel

Wow😮 a lot of knowledge 😊

all this sound like a bunch of BS to me

I can recall studying Organic Chemistry and Inorganic Chemistry (separate courses), so intensely. Then I went to the grocer and there was a whole new section of foods. It said, "ORGANIC FRUITS & VEGETABLES".
I stood right there and cried. 😭😂😭😂😭😭😭😭😭

Decays...
'Ashes to ashes, dust to dust.'

A refresher courrse of sorts.
My Instructors cheated on isotopes especially.
But GLUCON?

I' m hungry.

The ratio between carbon isotopes is one of the reasons we know damn well that fossil fuels are the cause of the increase in atmospheric CO2.

CO2 is "non transparent' to the frequency of exiting reflected solar radiation. Increased atmospheric CO2 blocks reflected solar radiation thereby trapping it within earths atmosphere at an increasing rate causing an increased trend in warming.

Look up the 'Seuss Effect'. Atmospheric 12C and 13C isotopes have increased in the same ratio found in plants, but NOT the radioactive 14C which means that the vast majority of atmospheric CO2 increase we are seeing is due to an ancient plant where the radioactive isotope has already depleted. This can only be one thing, fossil fuels, primarily coal from the Carboniferous and Permian periods of the Paleozoic. (14C isotopes increase in the 50s due to nuclear testing but after the Nuclear Test Ban Treaty of 1963 began to "decrease" causing us to be able to discern that offset, really that "decrease" was the increase in 12C from fossil fuels).

Plants in the Carboniferous period of the late Paleozoic developed lignan but decomposers had not yet evolved the ability to decompose, to eat, lignan, so these plants went through diagenesis in swamps to become coal.
---------------------------------
Atmospheric CO2-
1977 - 333ppm
2002- 365ppm
2022 - over 420ppm
---------------------------------
FOSSIL FUELS:

Petroleum ("gas") = fossil plants (phytoplankton such as diatoms (algae), and animals (zooplankton).

Coal = fossil plants (Carboniferous and Permian periods mainly)

"Natural" gas (BS marketing name) = fossil anoxic decomposers

...at no point are dinosaurs involved.

Carbon isotopic analysis is one of the primary reasons we know for sure that it is fossil fuels that are causing the increase in atmospheric CO2

Look up the 'Seuss Effect'. Atmospheric 12C and 13C isotopes have increased in the same ratio found in plants, but NOT the radioactive 14C which means that the vast majority of atmospheric CO2 increase we are seeing is due to an ancient plant where the radioactive isotope has already depleted. This can only be one thing, fossil fuels, primarily coal from the Carboniferous and Permian periods of the Paleozoic. (14C isotopes increase in the 50s due to nuclear testing but after the Nuclear Test Ban Treaty of 1963 began to "decrease" causing us to be able to discern that offset, really that "decrease" was the increase in 12C from fossil fuels).

Lets say something is 100000 years old. How do you know how much C14 it had to start with? I get half life but don't get being sure of starting amount.

How can we tell if he's giving the scientific answer or the correct woke answer?

My cousin Mugalu tried to speak out about Degrass and how rude he was when talking over the top of people. He was attacked by hired goons who landed heavy kicks to his groin

go, go, Isotopes...

What a great explanation, thank you.

I was following the math up until you guys started taking Bout the 1/2 life of carbon14. How do we know what the half life of something is when we are selfes have not been studying this information for 5000 years

Now why couldn't someone explain it this way in high school?

Im bad at chemistry

Thanks!

If C-14 has a half-life of let's say 5000 years, how could we possibly guess the correct age of something which is 7500 years old? Since C-14 becomes C-7 in 5000 years and C-7 becomes C-3 or C-4 in another 5000 years. So, we may only guess the age of things in multiples of 5000 only, is that correct?

Why does life create carbon 14 from carbon 12? Is it from photosynthesis and do marine artifacts have less carbon 14 than expected (they appear older than they are)?

You ask carbon for a date. It turns you down but you keep trying. Silicon convinces carbon to go out with you and finally says yes. It's a typical dinner & movie. Carbon has a good time & agrees to keep seeing you. After a few more outings you are now carbon dating.

Neil deGrasse Tyson for President.🇺🇸🇺🇸🇺🇲

Neil deGrasse Tyson is an amazing communicator and educator. I still whimsically blame him for destroying the planet Pluto though. My nickname for him is "Death Star". :)

Surprised he didn't talk about O3 or ozone generators and how it eliminates smells.

Outstanding video! What are your thoughts on nuclear rearrangements to reduce radioactive waste?

Cool.

Carbon-14: the dating app for scientists and science enthusiasts

Good, fun, and educational.

Disrespectful to women and Mother Nature. Damn. Beta decay in the brain 🧠 toxic behavior ☣️🫠

Lol this dude is funny 😂

Scientist that discovered carbon dating came from my high school, Analy High in Sebastopol, CA.