Putting a number in front of every sentence in a story makes it a list?

If you were not taught all of these things in highschool, the system has failed you.

? Any high school chemistry class would teach you all of these things.

Rich Cream: Putting a number in front of every sentence in a story makes it a list?

Maybe the author is a big fan of the bible.

20 Physicist Richard Feynman once predicted that number 137 defines the table's outer limit; adding any more protons would produce an energy that could be quantified only by an imaginary number, rendering element 138 and higher impossible. Maybe.

Wait, what? Citation, please?

jfarkinB: 20 Physicist Richard Feynman once predicted that number 137 defines the table's outer limit; adding any more protons would produce an energy that could be quantified only by an imaginary number, rendering element 138 and higher impossible. Maybe.

Wait, what? Citation, please?

Check out http://en.wikipedia.org/wiki/Extended_periodic_table (new window) and look at "Bohr model breakdown"

Basically the 138th electron would have to orbit a greater than the speed of light in that model.

Also, trace amount of elements #93 & 94 have been found in nature (uranium absorbing an alpha particle)

jfarkinB: 20 Physicist Richard Feynman once predicted that number 137 defines the table's outer limit; adding any more protons would produce an energy that could be quantified only by an imaginary number, rendering element 138 and higher impossible. Maybe.

Wait, what? Citation, please?

I share your confusion. The number would probably be giant, but there is no reason it should be imaginary.

I imagine that the true statement is something like:
Adding any more protons would require an energy greater than what can be contained by inter-atomic forces.

Ooops. messed up the link.

"9 But when argon was discovered in 1894, it didn't fit into any of Mendeleyev's columns, so he denied its existence-as he did for helium, neon, krypton, xenon, and radon."


I do this with all of my problems too.

Really that was 20 facts about chemistry and physics that may or may not be related to the table.

RogermcAllen: jfarkinB: 20 Physicist Richard Feynman once predicted that number 137 defines the table's outer limit; adding any more protons would produce an energy that could be quantified only by an imaginary number, rendering element 138 and higher impossible. Maybe.

Wait, what? Citation, please?

I share your confusion. The number would probably be giant, but there is no reason it should be imaginary.

I imagine that the true statement is something like:
Adding any more protons would require an energy greater than what can be contained by inter-atomic forces.

Proton are positively charged, so you need neutrons to provide a nuclear force to over come the positive-positive repulsion between two protons. Eventually though, the positive-positive repulsion would be too great for the neutrons to overcome.

My educated guess, could be wrong. I am a physicist though.

I now have an obit for myself:

Mayhem of the Black Underclass is survived by his Wife and five children. He is best known for spending 8 years denying the existence of Argon.

#21: One was of the predicted elements was gallium, and when it was finally isolated, it had a different atomic mass. Mendeleyev said the observation was wrong. Sure enough, a purer form of gallium was obtained and the prediction in the table was correct.

#22: Predicted elements were named using Sanskrit prefixes.

(I read this in an Asimov book, but there's a Wikipedia (new window) article too.)

21. Why aren't honey and mustard closer together?

stuhayes2010: RogermcAllen: jfarkinB: 20 Physicist Richard Feynman once predicted that number 137 defines the table's outer limit; adding any more protons would produce an energy that could be quantified only by an imaginary number, rendering element 138 and higher impossible. Maybe.

Wait, what? Citation, please?

I share your confusion. The number would probably be giant, but there is no reason it should be imaginary.

I imagine that the true statement is something like:
Adding any more protons would require an energy greater than what can be contained by inter-atomic forces.

Proton are positively charged, so you need neutrons to provide a nuclear force to over come the positive-positive repulsion between two protons. Eventually though, the positive-positive repulsion would be too great for the neutrons to overcome.

My educated guess, could be wrong. I am a physicist though.

That's not quite it. When two nucleons are close to one another, they attract. Really, really close though. Less than two femtometers close. But if the distance is closer than .7fm then it repulses again. It's called the strong force. That's probably what Feynman was talking about, I dunno.

Some newer models suggest an island if stability for really big synthetic elements, but you have to arrange the nucleons properly or it won't work. Again I don't know if that island is supposed to be bigger than 137 or not.

Hope that helps

And that's island of stability. Not if. Damn phone

Umm...have we forgotten the proper periodic table?:

Link (new window)

20 Physicist Richard Feynman once predicted that number 137 defines the table's outer limit; adding any more protons would produce an energy that could be quantified only by an imaginary number, rendering element 138 and higher impossible. Maybe.



they'll get right on it

There comes a time in every Superman reader's young life when they become old enough to learn chemistry and find out that Krypton is "also" an element.

13 Atomic love: Take a modern periodic table, cut out the complicated middle columns, and fold it once along the middle of the Group 4 elements. The groups that kiss have complementary electron structures and will combine with each other.
14 13 continued: Sodium touches chlorine-table salt! You can predict other common compounds like potassium chloride, used in very large doses as part of a lethal injection.

Calcium doesn't touch fluorine, yet they'll still combine too.

16 Carbon atoms-also Group 4-bond in long chains, and voilà: sugars.

And proteins and nucleotides and alkanes and aromatics and graphene and diamond and millions of other carbon-based compounds that aren't sugar.

The chemical flexibility of carbon is what makes it the key molecule atom of life.

19 The two newest members of the periodic table, still-unnamed elements 114 and 116, were officially recognized last June. Number 116 decays and disappears in milliseconds. (Three elements, 110 to 112, were also officially named earlier this month.)

For a flexible definition of "this month". Copernicium (112) was named last year, and Darmstadtium (110) and Roentgenium (111) were named by IUPAC in 2003 and 2004 respectively. The physicists finally got on board this year by accepting what the chemists had already decided.

Who bloody wrote this? Crap like this is the reason I need a TV show. Too much popular science is written by people who don't understand science.

Bondith:

Who bloody wrote this? Crap like this is the reason I need a TV show. Too much popular science is written by people who don't understand science.

And a magazine to which I can subscribe

#21 - it has been made into an actual table (new window).

Atoms with atomic numbers higher than 92 do not exist naturally, but they can be created by bombarding elements with other elements or pieces of them.

Neither does Technetium. At least on this planet anyway.

mortarnpistol: mortarnpistol: 20 things you didn't know about the periodic table of elements, assuming you dropped out of school before sophomore chemistry...

Good point. And if Facebook is any indication, most people I went to high school with are so stupid they'd think an electron is what you do to pick the next president...

Has a girl in my HS chemistry class argue for 20 minutes that mercury couldn't freeze because it was a planet.

Guidette Frankentits: mortarnpistol: mortarnpistol: 20 things you didn't know about the periodic table of elements, assuming you dropped out of school before sophomore chemistry...

Good point. And if Facebook is any indication, most people I went to high school with are so stupid they'd think an electron is what you do to pick the next president...

Has a girl in my HS chemistry class argue for 20 minutes that mercury couldn't freeze because it was a planet.

I thought it was because he was a god.

Sylvia_Bandersnatch: Guidette Frankentits: mortarnpistol: mortarnpistol: 20 things you didn't know about the periodic table of elements, assuming you dropped out of school before sophomore chemistry...

Good point. And if Facebook is any indication, most people I went to high school with are so stupid they'd think an electron is what you do to pick the next president...

Has a girl in my HS chemistry class argue for 20 minutes that mercury couldn't freeze because it was a planet.

I thought it was because he was a god.

That's what SHE said.

11 Now we sort elements by their number of protons, or "atomic number," which determines an atom's configuration of oppositely charged electrons and hence its chemical properties.

14 Sodium touches chlorine-table salt! You can predict other common compounds like potassium chloride, used in very large doses as part of a lethal injection.

16 Carbon atoms-also Group 4-bond in long chains, and voilà: sugars. The chemical flexibility of carbon is what makes it the key molecule of life.

I should hope that "you" would already know these. Is this a list of 20 things an idiot or an early middle-schooler wouldn't know?

Spaceman Spiffed: Check out http://en.wikipedia.org/wiki/Extended_periodic_table (new window) and look at "Bohr model breakdown"

Basically the 138th electron would have to orbit a greater than the speed of light in that model.

Ah, many thanks.

I'm a bit disappointed, though -- the Bohr model, as I read this, was non-relativistic. Without relativistic effects, you can't even explain why mercury is a liquid at STP; I'd hesitate to take a non-relativistic model's word when it came to this sort of prediction.

Rich Cream: Putting a number in front of every sentence in a story makes it a list?

Came here for this. Thanks.

Guidette Frankentits: mortarnpistol: mortarnpistol: 20 things you didn't know about the periodic table of elements, assuming you dropped out of school before sophomore chemistry...

Good point. And if Facebook is any indication, most people I went to high school with are so stupid they'd think an electron is what you do to pick the next president...

Has a girl in my HS chemistry class argue for 20 minutes that mercury couldn't freeze because it was a planet.

In HS, a girl in my Recent American History class asked what state Washington DC was in. She was told that it wasn't in a state. To which she replied, "it's in the US, it has to belong in a state." After another explanation, with a different approach, she still didn't get it... A few rounds later she admitted defeat and at the end of the class she was still going on about how it had to belong to a state.

Spaceman Spiffed: jfarkinB: 20 Physicist Richard Feynman once predicted that number 137 defines the table's outer limit; adding any more protons would produce an energy that could be quantified only by an imaginary number, rendering element 138 and higher impossible. Maybe.

Wait, what? Citation, please?

Check out http://en.wikipedia.org/wiki/Extended_periodic_table (new window) and look at "Bohr model breakdown"

Basically the 138th electron would have to orbit a greater than the speed of light in that model.

Also, trace amount of elements #93 & 94 have been found in nature (uranium absorbing an alpha particle)

Well, if neutrinos can do it, why not electrons?

/Ducks, runs and hides

Tenatra: Guidette Frankentits: mortarnpistol: mortarnpistol: 20 things you didn't know about the periodic table of elements, assuming you dropped out of school before sophomore chemistry...

Good point. And if Facebook is any indication, most people I went to high school with are so stupid they'd think an electron is what you do to pick the next president...

Has a girl in my HS chemistry class argue for 20 minutes that mercury couldn't freeze because it was a planet.

In HS, a girl in my Recent American History class asked what state Washington DC was in. She was told that it wasn't in a state. To which she replied, "it's in the US, it has to belong in a state." After another explanation, with a different approach, she still didn't get it... A few rounds later she admitted defeat and at the end of the class she was still going on about how it had to belong to a state.

OK, i'm on a completely different continent, grew up here, so i'm not too familiar with how the US works in this regard. Enlighten me, please?

You do, actually. Natsumi is my sister, and also resides here.

SJKebab: Smoking GNU: You do, actually. Natsumi is my sister, and also resides here.

Is she hot?

I don't believe i have the legal or non-gagging ability to comment on the subject, as she is my SISTER.

Smoking GNU: OK, i'm on a completely different continent, grew up here, so i'm not too familiar with how the US works in this regard. Enlighten me, please?

Interesting place you come from, a jam packed city but nothing at all near it. It reminds me of my time in Anchorage, Alaska. In ~15 minutes I could escape city life and go explore the mountains :p

Smoking GNU: SJKebab: Smoking GNU: You do, actually. Natsumi is my sister, and also resides here.

Is she hot?

I don't believe i have the legal or non-gagging ability to comment on the subject, as she is my SISTER.

Does she have møøse issues?

booksmrt: Bondith:

Who bloody wrote this? Crap like this is the reason I need a TV show. Too much popular science is written by people who don't understand science.

And a magazine to which I can subscribe


I actually sent a resume to TVO begging for a hosting gig. So far, nothing, unsurprisingly. I think I need some YouTube cred or a populist groundswell of support.

Smoking GNU: SJKebab: Smoking GNU: You do, actually. Natsumi is my sister, and also resides here.

Is she hot?

I don't believe i have the legal or non-gagging ability to comment on the subject, as she is my SISTER.

So that's a yes?

Ahem. (new window)