Timeline for Why are line spectra only seen in gases?
Current License: CC BY-SA 3.0
7 events
| when toggle format | what | by | license | comment | |
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| Jan 29, 2018 at 18:05 | comment | added | Samuel | @Anthony You imply here that the spectral lines for each element are only known through measurement. That's a little surprising to me, does our model for atomic structure not allow us to reliably predict the emission spectra? | |
| Jan 28, 2018 at 3:52 | comment | added | Weaver Ant | I understand, I guess that way, they're able to vaporize carbon in a vacuum using the laser, furthermore preventing it from forming a bond. My apologies, I should have done more research. thank you dmckee for clarifying this. @IK-_-IK, do not rely on my statement, for it is false. | |
| Jan 28, 2018 at 3:43 | comment | added | dmckee --- ex-moderator kitten | In modern machines they typically vaporize a bit of the sample with a pulsed laser. That's commercial-off-the-shelf technology. | |
| Jan 28, 2018 at 3:39 | comment | added | Weaver Ant | If that were true? how in world did they find this data for carbon? with a boiling point at 5100 K (that's possible, but still extremely hot) and carbon would have burned and formed a bond with another atom (like oxygen or hydrogen) way before boiling. Plus, Do you really think they boiled Rhenium which has a boiling point of 5,870 K (pretty darn hard to boil) and one of the a rarest elements on earth. | |
| Jan 28, 2018 at 1:22 | comment | added | dmckee --- ex-moderator kitten | Just because an element is liquid or solid at STP and you find a atomic spectrum for it does not mean that the spectrum was taken while the substance was in solid or liquid state. I don't know for certain that it doesn't happen, but I do know that often a portion of a sample is converted into a rarified phase phase for spectrography. | |
| Jan 28, 2018 at 0:19 | review | First posts | |||
| Jan 28, 2018 at 0:28 | |||||
| Jan 28, 2018 at 0:16 | history | answered | Weaver Ant | CC BY-SA 3.0 |