Alkali metals in water - Chemical elements: properties and reactions (1/8)
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- Опубликовано: 17 окт 2024
- Shows both the reactions and properties of some chemical elements.
(Part 1 of 8)
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Caesium: blows up glass
Francium: blows up whole entire lab
when you thought potassium was the most reactive metal:
due to relativistic effects, francium is actually less reactive than cesium.
francium nuclei are so heavy that they pull the electrons closer and this causes them to orbit as faster speeds. this in turn makes the electrons more tightly bound to the nucleus, which makes it harder for the atom to react
blows up the hole school
First you need to find some Francium out there...
Most stable isotope of Fr has 22-minute half life.
Delivery took a few business days at the very least.
Not to mention there's only a few grams of Fr that's naturally occurring.
This is the most accurate representation of alkali metals reacting with water. The pieces of metals are of consistent size. No false claims are made. Proper safety gear and increase of level of safety gear is demonstrated. I've used this with colleagues for years to teach the reactivity trend of alkali metals and to demonstrate periodic trends such as ionization energy. 16 years now, here we are using it again.
"You can see things become more terrifying as we go down the group"
LOL :)
@@ghoulx3679 no, but I will, and your fortnite videos are terrible.
Wow
@Rania Woodward well mate, i was busy with my childhood for i am 13
W
Larger atom, less ionization energy needed...KABOOM!😅
Slicing Lithium looks really satisfying...
That whistle after cesium.
" Now let's see francium"
it'd decay into a lesser element in before you know it...
Lol science jokes 🧪
Let's see rubidium. (you joke is funny coz of the cat)
haha
WhT about germium or spainium or even scotlandium
The elements video that captivated a generation of scientist's minds around the world. 25 years after first seeing it in high school and it still delights.
what are you on mate? XD
@@zenic3449 iq points
@@Muonium1 was that meant to be some kind of comeback XD
@@zenic3449 ratio
The video is only 15 years old….. think before you lie love
thumbs up if the first time you saw the reaction of caesium you were astonished
watching this in 2020 and i'm still amazed my caesium
I watched this back in the early 1970's, when this open university course was being broadcast in the UK.
it made an impression
I am watching in 2021 and very nice profile picture
I remember watching this video with my dad when I was very young and being absolutely FASCINATED. Just rewatched for my High School Chemistry course, and it's just as good as I remembered.
2:18 A way to blow up the school during science :) LMAO
lol true :P
AHAHAH
lmao
ikr i was watching this in science
shame we cant do that in science
watched this in chem class, funniest video ever
Fantastic! I saw the exact same film in school!
13 years later and we’re still using it. I just watched this in Chem today
An often overlooked fact is that lithium actually reacts with nitrogen in the air to form lithium nitride (black coating) which is why you get an ammonia smell when its put in water
Li3N + 3H2O -> 3LiOH + NH3
"it becomes more terrifying"
the one after it:
I remember watching this video last year in school, my eyes went wide when they showed the cesium. We also got to do potassium and natrium ourselves while the teacher did kalium.
I heard a guy whistle at the end....
Me too lol 😂😂🤣😅
I wonder if u still will see this after 11 years
I was actually wondering what francium would of done but seems like cesium was just a warning
Francium is less reactive. This is because the nuclei is so large that it pulls the electrons closer, so they are more tightly bound to the atom making it harder for the francium to react.
Probably the best non-faked (Braniac!) alkali video that I have viewed. Both factual and interesting.
i like how it was described as being more terrifying... haha
My Chem teacher showed this in class today (this same video), thought I'd look up some more videos. Did not expect to find the same video 🤣
Chem teacher here - can confirm. I've been using this video for years. I show lithium and sodium in person and use the video for the more "terrifying" ones.
@@jessewilkins841 Wow... Wish my teacher did that NGL but I don't think we have any Sodium and Lithium on hand. Not at the moment anyway...
probably the funniest video i’ve watched in a while (this is a compliment)
Dude that was awesome!
@Blair Galloway?
Blair Galloway lmao
@Blair Galloway we don't need any ones crappy permission to speak. being the arrogant brat you are i'm sorry to say but the world doesn't revolve around you.
Ohh...never seen before Rb & Cs reacts with water...great video..!
Watchruclips.net/video/rfypK56GV8A/видео.html
So the more subshells tends to release more energy
Is there a way to download this video? The option isn't visible here
~sighs happily~ Ah... ever since I was a high school student, this video never ceases to make me smile every time I watch it~
wow! let's try francium....:)
you know what will happen
@@desertman2713 OR DO WE HAHAHA
It's radioactive... Plus I don't think there would be anything left to see...
@@hyperion3704 LOL XD
It would have a half life of ~22.5 minutes
I remember seeing this in 11th grade chemistry about a decade ago. The cesium scene had some of us giggling a bit because it kinda caught us off-guard.
its 2021 but this is better than my school
its the ✨whistle✨ for me
this is a master piece
It is satisfying when he cuts the metal 👌
It was really helpful,,thanks for uploading the video clip.
0:14
when u receive the n-word pass
That was awesome!
2:18 for anyone who wants to put it on loop
The video is so awesome, so good!
I'm gonna build a paper boat which is propelled by lithium. It gonna come with custom Cesium bombs that can destroy other paper boats... Don't ask me what's gonna happen if it sinks though...
are there any videos of francium in water?
No.
It is not possible because it has a very short half life, but the nucleus of francium are so large that it pulls electrons towards the atom, making it harder to react.
online class ?
?
Too bad that Francium is 1 illegal for anyone to own and 2 has a half life of only 21 minuets.
is it just me or do you guys feel the same way, so satisfying when cuts the metals. :>>>>>]}}}};>
POV: You're here for a Science lesson.
Yes
I'm in school
True;)
woah...............thx science teacher u gave me ideas :P
lol my chemistry teacher showed this video to me and my class today :]
Did this experiment first hand back in 2006 during school chem class. Only for lithium, sodium and potassium for obvious reasons.
Why hello there
bro just dropped the tweezers after realizing he had to do cesium next
anyone else really wanna take a bite out of them
They'll be like pop rocks... except that they really pop and could explode inside your mouth. Fun :)
thank you...very helpful video(esp when cramming) =)
that was an abrupt end woah
Now as we finish this lesson, i have a spare chunk of francium to test.
You're lucky to have even a few milligrams of it, it's so rare and also radioactive.
Who is watching in 2024😅
Checking in, just watched with the family. Well some of them...that didn't get bored...during the roughly 2 min vid...
What about Francium?
It has a half life of only twenty two minutes, so it is too small to test.
Great vid keep it up
That caesium got me shook
yeah, i can see why.
Add in better quality pls
Those soft metals being cut by knife is so satisficing. If robots ate breakfast those soft metals be their butter and cream.
that whistle at the end though
Watching this for my science lesson😂😂
bro i was born 15 days before this video was posted exactly im not cappin
I saw this in science on Monday, 2 days ago cause we’re doing chemistry in science
cool vid thanks for the demo
Nice pfp
@@troy6826 Thank you Danny.
big chungus l love big Chungus
@marcopolo359 I think it's 14g at any given time..
Impressive
cool video
Fr is gonna be a FRENZY!
That poor glass tank got so much abuse.
Online classroom gamers where you at
ayeeee
Quality: 240p
Me: Wow were they using a stick to record this???
yeah my man, emperor augustus watched this
Who's watching this in chemistry lesson
Bro broke his glass container for us😅
Awesome
So funny with the Cesium!
Interesting
good
i remember seeing this for the first time in year 7 like “wowwwwww”
im in year 7 now :)
Cool!
@MLangan86 Francium so far can not seem too exist on its own due to how reactive it is so it is nigh impossible at this day and age to even witness what happens if it where to react although I can say that there are theories too what would happen if it where to be isolated and then put into reaction that you could read into and then use your imagination to do the rest lol. I could be wrong but to my own knowledge this is the case.
It go boom
And now you know why lithium batteries blow up all the time
Wow! Very dangerous❤😂😂😂🎉🎉🎉
Nifty!
@Aviatorsmith Ok thanks for telling me :)
“Now let’s try this small improvised explosive device”.
They didnt do francium cause it would cause much more damage
Not only it's radioactive, it's so rare, good luck collecting 1 mg of Fr.
Crazy 😍
who's here for online lesson?
me
Look at the date...
I had this video for my chemistry class in my junior year oh high school 2022/2023 alkali geometry dash
OMFG caesium was epic :O
@Blair Galloway Oh my god lol
wow
From Bangladesh
If thats how caesium looks like, i wonder how francium does =D
the comment section is archived
Now let's see caesium... ends with an explosion
@andresblazeit420 francium is extremely rare.. like SUPER Rare like 5g on the planet or something
francium: *throws and run away*