RAM VII ISOTOPES

[@MarioDallaRiva]

Highly informative! Sad to hear of the loss of a great educator.

[@AtomicSchool]

Thank you, Mario. On both counts.

[@f.d.english5080]

How do you know the % of isotopes of ALL lithium, do you go around pulling down the pants of every lithium atom? -Dr. Ian Malcolm, Jurassic Park-😂

[@AtomicSchool]

A sample is put into a mass spectroscope and the results spread all the different atomic masses across the spectrum. The spectrum intensity determines the % of each isotope.

[@jaibheemkhetasar9017]

Very helpful vidio. Thank's

[@AtomicSchool]

You're welcome, Manisha.

[@RetrieverMapping]

I am like Oganesson

[@brothernicole3112]

spoiler: eka-francium has the atomic number 119

[@taniya0011]

Really really good. if I have any doubts I will ask you sir can I ?. .very helpful thankyou so much sir.i watched somany videos but your videos helping me.i am on 10th std I missed my 9th Classes but your class helping me to understand all missed classes

[@AtomicSchool]

Great to hear, Shaziya. Sure, you can ask a question.

[@taniya0011]

@@AtomicSchool sir can you explain the chapter Effects of electric current. physics first chapter 10th Std

[@RetrieverMapping]

11:12 There are 38 elements with no stable isotopes and you didn’t include natural elements like Uranium and Thorium.

[@AtomicSchool]

Maybe. If you include the synthetic elements with atomic numbers above 92. But of the naturally occurring elements up to Uranium, there are only 2.

[@RetrieverMapping]

There are 11 natural radioactive elements

[@AtomicSchool]

@@RetrieverMapping Interesting. Which ones are they?

[@RetrieverMapping]

They are:Tc,Pm,Po,At,Rn,Fr,Ra,Ac,Th,Pa and U

[@AtomicSchool]

@@RetrieverMapping I think the list is longer e.g. carbon-14 is a naturally occurring radioisotope.

[@aircol]

Next video?

[@lilifu328]

what a fun way to learn!

[@AtomicSchool]

Good to hear, Lili.

[@kisho2679]

How is the exact mass be measured technically?

[@AtomicSchool]

This is a physics question. There are two ways (1) using a mass balance against a standard 1 kg mass and (2) accelerating the object with a known force and then using F=ma. In deep space without gravity (2) is the only option.

[@theskinimin3107]

Wow! I truly understood this! Great way of teaching!

[@AtomicSchool]

Thanks!!!

[@RetrieverMapping]

0:01 So kind

[@zonellama4221]

First first

[@AtomicSchool]

Congratulations! You're like Hydrogen!