Chemist Answers Chemistry Questions From Twitter - Tech Support
video description
Date: 2022-07-07
Related videos
Comments and reviews: 10
yellstr
OMG, her answer to -why can't I pass my hand through a solid object? - is absolutely wrong! Nucleus has absolutely nothing to do with it! It is all electro-static force: the electrons in the atoms zip so fast that they form a -cloud- around the nuclei. And since these clouds are made of electrons they have negative electric charge, and similar charges repel. Thus, the electron clouds around the atoms of your hand and a table start repelling each other when you get them close enough.
Also your hand can't -exchange electrons- with the table - when atoms -exchange- electrons that is how molecules are formed. And you do not form new molecules each time you touch the table.
reply
OMG, her answer to -why can't I pass my hand through a solid object? - is absolutely wrong! Nucleus has absolutely nothing to do with it! It is all electro-static force: the electrons in the atoms zip so fast that they form a -cloud- around the nuclei. And since these clouds are made of electrons they have negative electric charge, and similar charges repel. Thus, the electron clouds around the atoms of your hand and a table start repelling each other when you get them close enough.
Also your hand can't -exchange electrons- with the table - when atoms -exchange- electrons that is how molecules are formed. And you do not form new molecules each time you touch the table.
reply
You2uber
Great butt. I mean great, but the explanation about why materials don't go through each other is wrong. It's true that the core of the molecule is dense, but chances are you'll never hit it since it takes very very small space relatively to where the atom ends or where the electrones are. The better explanation is that the electrons that are on the outside repel the electrons of the other materials so they don't pass through each other.
reply
Great butt. I mean great, but the explanation about why materials don't go through each other is wrong. It's true that the core of the molecule is dense, but chances are you'll never hit it since it takes very very small space relatively to where the atom ends or where the electrones are. The better explanation is that the electrons that are on the outside repel the electrons of the other materials so they don't pass through each other.
reply
Ahmad
My chemistry teacher told me I was dumb, not directly but it was how she implied. She said along the line of -this is the class for the bright students, how can you be here? -. Turns out, I'm good at English, Arabic, sociology, accounting, but not good at science, particularly chemistry but I was decent at math. I take criticism pretty well, but at that time I was too young to separate between critic and insult, so it left a little scar.
reply
My chemistry teacher told me I was dumb, not directly but it was how she implied. She said along the line of -this is the class for the bright students, how can you be here? -. Turns out, I'm good at English, Arabic, sociology, accounting, but not good at science, particularly chemistry but I was decent at math. I take criticism pretty well, but at that time I was too young to separate between critic and insult, so it left a little scar.
reply
Auth
shes kinda wrong about the hand phasing through, it isn't the nuclei stopping each other, this is demonstrated by the gold foil experiment. Its actually the electrostatic force of repulsion present between atoms and especially electrons, if your hand was made of entirely nuclei you might be able to pass through as atoms are mostly empty space. The reason she go this wrong it bc its not a chemistry question.
reply
shes kinda wrong about the hand phasing through, it isn't the nuclei stopping each other, this is demonstrated by the gold foil experiment. Its actually the electrostatic force of repulsion present between atoms and especially electrons, if your hand was made of entirely nuclei you might be able to pass through as atoms are mostly empty space. The reason she go this wrong it bc its not a chemistry question.
reply
Devwardhan
About the solid objects explanation, the nucleus is very small compared to the atom as stated but the reason you can't move past solid objects is due to incredible repulsion of like charges and a phenomenon called steric hinderance which essentially means that the atoms have crowded up too much and are so close that they are blocking interaction amongst themselves.
reply
About the solid objects explanation, the nucleus is very small compared to the atom as stated but the reason you can't move past solid objects is due to incredible repulsion of like charges and a phenomenon called steric hinderance which essentially means that the atoms have crowded up too much and are so close that they are blocking interaction amongst themselves.
reply
MAQpi
Ok so if we can't pass through atoms because of the nucleus then why can we pass through gases. I think a better answer to the question could have been that in solid it's not just 1 atom, it's millions of atoms packed together which gives them a mass which we can't pass through
reply
Ok so if we can't pass through atoms because of the nucleus then why can we pass through gases. I think a better answer to the question could have been that in solid it's not just 1 atom, it's millions of atoms packed together which gives them a mass which we can't pass through
reply
chronically_mads
I honestly really didn't like chemistry in school, because I found it so hard to understand, but no one ever made the effort to explain it like this! The way you broke everything down, and added so much enthusiasm actually made all of these answers make sense!
reply
I honestly really didn't like chemistry in school, because I found it so hard to understand, but no one ever made the effort to explain it like this! The way you broke everything down, and added so much enthusiasm actually made all of these answers make sense!
reply
Devwardhan
For the most harmful chemical reaction there are many, like the nuclear fusion reactions in the core of the sun which are incredibly energetic. Reactions to produce sarin gas (a gas which can almost instantly kill you in negligible concentrations) and many more.
reply
For the most harmful chemical reaction there are many, like the nuclear fusion reactions in the core of the sun which are incredibly energetic. Reactions to produce sarin gas (a gas which can almost instantly kill you in negligible concentrations) and many more.
reply
meandogassbite
Huh. I sucked at chemistry all my life (both parents are/were chemists so a given i guess. but I do understand enough to know she answered a bunch of physics questions which is a completely different discipline. Cool vid tho, love the enthusiasm!
reply
Huh. I sucked at chemistry all my life (both parents are/were chemists so a given i guess. but I do understand enough to know she answered a bunch of physics questions which is a completely different discipline. Cool vid tho, love the enthusiasm!
reply
Nicholas
the answer given for why we can't pass our hands through objects is not really the full picture, nor is it really a good answer. It has more to do with electrostatic repulsive forces than the density of the nucleus.
reply
the answer given for why we can't pass our hands through objects is not really the full picture, nor is it really a good answer. It has more to do with electrostatic repulsive forces than the density of the nucleus.
reply
Add a review, comment
Other channel videos
4:26
6:19
