in case you still care: the periodic table is arranged primarily by the chemical properties of its elements (mainly electronegativity, i.e. how much energy it takes to add/remove an electron to/from the atom) and also by their mass.
Huh? It’s sorted by number of electrons/protons (atomic number) the mass is dependent on that and the number of neutrons.
The eight main groups are based on the number of electrons missing for the atom to reach a full valence shell. Once it is full (8th group, noble gasses) it starts a new Period (row). I’m not sure how the other groups are chosen (probably some quantum physics that I never had in chemistry class). After looking it up Wikipedia says it just keeps going that way.
Electronegativity describes how much it “wants” to attract negative charges and doesn’t affect the order (Flourine has the highest and is in group 7). I think you may have confused it with ionization energy which would certainly match my understanding of the top half of the periodic table and probably does work for the lower half too now that I think about it.
The groups tend to have similar properties but that is not why they are sorted that way. Hydrogen for example is quite different from other elements in group one. The colours are probably better for finding common properties.
Have a look through the history section. The concept of periodicity substantially predates the quantisation of the atom. The modern table certainly considers atomic orbitals to be key, but the groups were absolutely created based on common properties.
Yeah, that wouldve been a great opportunity to get me further interested.
I have never been in a job where “I don’t know” is an acceptable answer, but I’ve always been in a job where “I don’t know, but I can find out for you” always is.
Maybe :3 I think my school wasn’t that highly ranked nationally, but I don’t know how others were in terms of the teachers so can’t compare… It definitely had a lot of other issues tho haha
Really? Seems like.a very shit teacher and school. Dont think a 7 yr old getting upset by that is unusual. Id be furious of that had happened to my kid.
Its kind of a perfect example of how mediocre has become acceptable and even celebrated. And the attidues of don’t question, or don’t challenge. Scale that up and you start understanding how the world is as it is, particularly in the US.
They need you to feel like less so they can feel like more. Their comfort trumps your reality. Bystanders are more comfortable appeasing bullies than caring for victims.
… Or just a smart kid. Me and my friend in school were also early in learning about negative numbers, but our teacher was positive about it and encouraged us to use them in the problems even though the other kids didn’t need to.
As with Union of Kobolds, I eventually got into the ‘gifted’ program… they even had me as a 2nd and 3rd grader basically being an unpaid tutor for 4th and 5th graders, sitting in the hallway, helping kids with reading difficulties (in all liklihood, undiagnosed dyslexia) read through kids books.
But, there’s always classes and teachers not part of the gifted program, and they’re often difficult and wrong and rude for no reason.
I still remember a chemistry teacher getting very angry with me for even bringing up quantum scale electron clouds as a model of atoms.
Not allowed to go beyond the Rutherford-Bohr model, even in discussion, always dismissive and rude, incapable of saying just ‘yes that is a more accurate model, but it is far too complex to go over without understanding Rutherford-Bohr first’.
Average autism experience tbh
That, and teachers really fucking hate being called out on something for some reason.
All my teachers were fine with it honestly :3 at least after primary school… if you corrected them they might’ve given you extra credit
But the general notion of saying something correct and people saying that that’s wrong, and not knowing why still stands
I asked my science teacher why and how the periodic table was setup like it was, I got “that’s how it’s setup”
But why, there as to be a reason
That’s just the way they made it
Yeah because they have to have gone by something what is that something
That’s just the way they did, stop asking questions (please don’t fucking learn in here)
Godamn that pissed me off.
Really? We got a detailed breakdown of why the periodic table is the way it is
Yeah, turned me off to science at that age too which sucks because I was pretty into it.
in case you still care: the periodic table is arranged primarily by the chemical properties of its elements (mainly electronegativity, i.e. how much energy it takes to add/remove an electron to/from the atom) and also by their mass.
Huh? It’s sorted by number of electrons/protons (atomic number) the mass is dependent on that and the number of neutrons.
The eight main groups are based on the number of electrons missing for the atom to reach a full valence shell. Once it is full (8th group, noble gasses) it starts a new Period (row). I’m not sure how the other groups are chosen (probably some quantum physics that I never had in chemistry class). After looking it up Wikipedia says it just keeps going that way.
Electronegativity describes how much it “wants” to attract negative charges and doesn’t affect the order (Flourine has the highest and is in group 7). I think you may have confused it with ionization energy which would certainly match my understanding of the top half of the periodic table and probably does work for the lower half too now that I think about it.
The groups tend to have similar properties but that is not why they are sorted that way. Hydrogen for example is quite different from other elements in group one. The colours are probably better for finding common properties.
Have a look through the history section. The concept of periodicity substantially predates the quantisation of the atom. The modern table certainly considers atomic orbitals to be key, but the groups were absolutely created based on common properties.
I do friend, I ended up looking into a few years later/have other teachers explain it but I never had that spark about it again
Too proud to say “I don’t know, I’ll look it up and tell you tomorrow”.
Yeah, that wouldve been a great opportunity to get me further interested.
I have never been in a job where “I don’t know” is an acceptable answer, but I’ve always been in a job where “I don’t know, but I can find out for you” always is.
Once I got into Gifted teachers were like that. My first couple years in normie classes suuuucked.
Then in Gifted the bullies got much smarter. Fun times.
You had an extraordinary school experience.
Maybe :3 I think my school wasn’t that highly ranked nationally, but I don’t know how others were in terms of the teachers so can’t compare… It definitely had a lot of other issues tho haha
Teachers and parents. So many tend to double down when you point out their mistakes.
“I’m the adult so tnat means I’m right and you’re wrong”
All they got in life is their self-declared superiority over literal children
Really? Seems like.a very shit teacher and school. Dont think a 7 yr old getting upset by that is unusual. Id be furious of that had happened to my kid.
Its kind of a perfect example of how mediocre has become acceptable and even celebrated. And the attidues of don’t question, or don’t challenge. Scale that up and you start understanding how the world is as it is, particularly in the US.
They need you to feel like less so they can feel like more. Their comfort trumps your reality. Bystanders are more comfortable appeasing bullies than caring for victims.
… Or just a smart kid. Me and my friend in school were also early in learning about negative numbers, but our teacher was positive about it and encouraged us to use them in the problems even though the other kids didn’t need to.
Yep, am autistic, can confirm.
As with Union of Kobolds, I eventually got into the ‘gifted’ program… they even had me as a 2nd and 3rd grader basically being an unpaid tutor for 4th and 5th graders, sitting in the hallway, helping kids with reading difficulties (in all liklihood, undiagnosed dyslexia) read through kids books.
But, there’s always classes and teachers not part of the gifted program, and they’re often difficult and wrong and rude for no reason.
I still remember a chemistry teacher getting very angry with me for even bringing up quantum scale electron clouds as a model of atoms.
Not allowed to go beyond the Rutherford-Bohr model, even in discussion, always dismissive and rude, incapable of saying just ‘yes that is a more accurate model, but it is far too complex to go over without understanding Rutherford-Bohr first’.
wait is that a thing?
oh wait nvm that’s another user’s username
Absolutely not