chemistry of art

randhi · 18 Jul 2004, 11:45 AM

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Its not all art, in fact only one section is on art itself and that in itself isn't really on art. believe me when i say that because i did art for four years, however there is alot on colours. pretty colours and how they come about!!

cameron0110 · 26 Jul 2004, 11:30 AM

Quote:

Originally Posted by mojako

i did not know that this module exist (and the biochem of movement too) until today when i looked at the CSU website. i thought CSU might be mistaken or just giving some jokes to make chem more interesting to ppl..
and was about to ask it in the forum.. until.. what? i saw these 2 electives in here too...
then looked at the syllabus and the chem of art doesn't really have art in it... mm.. not very interesting although im no good in art anyway.
my textbook only includes the 3 other electives.

Its not in the textbook we are using either which is a real bitch cause the other textbooks I've looked at stuff for it are sketchy and incomplete or else they cover a whole lot of stuff we don't even need. It basically means that I need a copy of the syllabus nearby whenever I do anything to do with this topic just to make sure that I've got everything covered and I imagine there are a lot of people in the same boat. If only this was like Legal or Eco where I can just learn stuff straight out of the textbook.

mojako · 27 Jul 2004, 9:16 AM

To cameron0110:

This site has a few links.. only a few though

http://science.uniserve.edu.au/schoo...m/chemart.html

>> It basically means that I need a copy of the syllabus nearby <<
It's not that much trouble

cameron0110 · 28 Jul 2004, 9:54 AM

I know its not that much trouble, I just like being lazy and complaining when I can't be. In actual fact a lot of this topic isn't too hard based on the fact that its almost all Monitoring and Management stuff so its almost like doing extended revision. So far so good, hopefully the sodium doublet stuff is the hardest this gets, although i doubt it- but at least i get that stuff which is a start.

randhi · 1 Aug 2004, 9:23 AM

You know what i can never get Bohrs assumptions, it just doesn't stick and for that matter neither does that sodium doublet thing. i think i could be in trouble...

cameron0110 · 2 Aug 2004, 4:43 AM

Ok here is my take on the whole issue. Bohr's assumptions were that the subshells at one distinct energy level all contained the same energy. i.e. 2s was the same energy as 2p, which it was for Hydrogen however this didn't work for other elements because of Schroedinger's uncertainty principle which stated that we can't identify where an electron is, we can only work out the probability of it being in a certain location. The 2s shell has a small probability of being in close to the nucleus while the 2p doesn't really have the same level of probability which means that the 2s shell partially shields the 2p shell from nuclear charge. This means that 2s is held closer to the nucleus while 2p is further out meaning they possess different energy levels.

Due to the magnetic field possessed by electrons caused by their rotations and spin, the 2p subshell in Sodium splits with 2 orbitals being at one energy level and 1 at a slightly different energy level. The energy released from 2p to 2s in sodium is at a yellow wavelength and the subtle energy difference results in the doublet as there is only a very small difference in energies so they have similar wavelengths leading to the creation of the Sodium doublet. I'm sorry about any innaccuracies in that and if anyone knows better than can correct me cause that was just off the top of my head so I've probably got something wrong.

cameron0110 · 2 Aug 2004, 4:50 AM

Ok here is my take on the whole issue. Bohr's assumptions were that the subshells at one distinct energy level all contained the same energy. i.e. 2s was the same energy as 2p, which it was for Hydrogen however this didn't work for other elements because of Schroedinger's uncertainty principle which stated that we can't identify where an electron is, we can only work out the probability of it being in a certain location. The 2s shell has a small probability of being in close to the nucleus while the 2p doesn't really have the same level of probability which means that the 2s shell partially shields the 2p shell from nuclear charge. This means that 2s is held closer to the nucleus while 2p is further out meaning they possess different energy levels.

Due to the magnetic field possessed by electrons caused by their rotations and spin, the 2p subshell in Sodium splits with 2 orbitals being at one energy level and 1 at a slightly different energy level. The energy released from 2p to 2s in sodium is at a yellow wavelength and the subtle energy difference results in the doublet as there is only a very small difference in energies so they have similar wavelengths leading to the creation of the Sodium doublet. I'm sorry about any innaccuracies in that and if anyone knows better than can correct me cause that was just off the top of my head so I've probably got something wrong.

cameron0110 · 2 Aug 2004, 4:53 AM

Ok here is my take on the whole issue. Bohr's assumptions were that the subshells at one distinct energy level all contained the same energy. i.e. 2s was the same energy as 2p, which it was for Hydrogen however this didn't work for other elements because of Schroedinger's uncertainty principle which stated that we can't identify where an electron is, we can only work out the probability of it being in a certain location. The 2s shell has a small probability of being in close to the nucleus while the 2p doesn't really have the same level of probability which means that the 2s shell partially shields the 2p shell from nuclear charge. This means that 2s is held closer to the nucleus while 2p is further out meaning they possess different energy levels.

Due to the magnetic field possessed by electrons caused by their rotations and spin, the 2p subshell in Sodium splits with 2 orbitals being at one energy level and 1 at a slightly different energy level. The energy released from 2p to 2s in sodium is at a yellow wavelength and the subtle energy difference results in the doublet as there is only a very small difference in energies so they have similar wavelengths leading to the creation of the Sodium doublet. I'm sorry about any innaccuracies in that and if anyone knows better than can correct me cause that was just off the top of my head so I've probably got something wrong.

randhi · 3 Aug 2004, 7:43 AM

Thanks cam!! i get it now.

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18 Jul 2004, 11:45 AM	#16 (permalink)
randhi Member HSC: 2007 Gender: Male Join Date: Mar 2004 Posts: 177 Last Activity: 6 Jun 2006, 6:19 PM	You can hide this advertisement by registering. Its not all art, in fact only one section is on art itself and that in itself isn't really on art. believe me when i say that because i did art for four years, however there is alot on colours. pretty colours and how they come about!!

27 Jul 2004, 9:16 AM	#18 (permalink)
mojako Supreme Member HSC: 2004 Gender: Male Location: my house Join Date: Mar 2004 Posts: 1,338 Last Activity: 4 Nov 2009, 5:16 PM	To cameron0110: This site has a few links.. only a few though http://science.uniserve.edu.au/schoo...m/chemart.html >> It basically means that I need a copy of the syllabus nearby << It's not that much trouble

28 Jul 2004, 9:54 AM	#19 (permalink)
cameron0110 Member HSC: 2004 Gender: Male Join Date: Mar 2004 Posts: 114 Last Activity: 2 Aug 2008, 3:12 PM	I know its not that much trouble, I just like being lazy and complaining when I can't be. In actual fact a lot of this topic isn't too hard based on the fact that its almost all Monitoring and Management stuff so its almost like doing extended revision. So far so good, hopefully the sodium doublet stuff is the hardest this gets, although i doubt it- but at least i get that stuff which is a start.

1 Aug 2004, 9:23 AM	#20 (permalink)
randhi Member HSC: 2007 Gender: Male Join Date: Mar 2004 Posts: 177 Last Activity: 6 Jun 2006, 6:19 PM	You know what i can never get Bohrs assumptions, it just doesn't stick and for that matter neither does that sodium doublet thing. i think i could be in trouble...

2 Aug 2004, 4:43 AM	#21 (permalink)
cameron0110 Member HSC: 2004 Gender: Male Join Date: Mar 2004 Posts: 114 Last Activity: 2 Aug 2008, 3:12 PM	Ok here is my take on the whole issue. Bohr's assumptions were that the subshells at one distinct energy level all contained the same energy. i.e. 2s was the same energy as 2p, which it was for Hydrogen however this didn't work for other elements because of Schroedinger's uncertainty principle which stated that we can't identify where an electron is, we can only work out the probability of it being in a certain location. The 2s shell has a small probability of being in close to the nucleus while the 2p doesn't really have the same level of probability which means that the 2s shell partially shields the 2p shell from nuclear charge. This means that 2s is held closer to the nucleus while 2p is further out meaning they possess different energy levels. Due to the magnetic field possessed by electrons caused by their rotations and spin, the 2p subshell in Sodium splits with 2 orbitals being at one energy level and 1 at a slightly different energy level. The energy released from 2p to 2s in sodium is at a yellow wavelength and the subtle energy difference results in the doublet as there is only a very small difference in energies so they have similar wavelengths leading to the creation of the Sodium doublet. I'm sorry about any innaccuracies in that and if anyone knows better than can correct me cause that was just off the top of my head so I've probably got something wrong.

2 Aug 2004, 4:50 AM	#22 (permalink)
cameron0110 Member HSC: 2004 Gender: Male Join Date: Mar 2004 Posts: 114 Last Activity: 2 Aug 2008, 3:12 PM	Ok here is my take on the whole issue. Bohr's assumptions were that the subshells at one distinct energy level all contained the same energy. i.e. 2s was the same energy as 2p, which it was for Hydrogen however this didn't work for other elements because of Schroedinger's uncertainty principle which stated that we can't identify where an electron is, we can only work out the probability of it being in a certain location. The 2s shell has a small probability of being in close to the nucleus while the 2p doesn't really have the same level of probability which means that the 2s shell partially shields the 2p shell from nuclear charge. This means that 2s is held closer to the nucleus while 2p is further out meaning they possess different energy levels. Due to the magnetic field possessed by electrons caused by their rotations and spin, the 2p subshell in Sodium splits with 2 orbitals being at one energy level and 1 at a slightly different energy level. The energy released from 2p to 2s in sodium is at a yellow wavelength and the subtle energy difference results in the doublet as there is only a very small difference in energies so they have similar wavelengths leading to the creation of the Sodium doublet. I'm sorry about any innaccuracies in that and if anyone knows better than can correct me cause that was just off the top of my head so I've probably got something wrong.

2 Aug 2004, 4:53 AM	#23 (permalink)
cameron0110 Member HSC: 2004 Gender: Male Join Date: Mar 2004 Posts: 114 Last Activity: 2 Aug 2008, 3:12 PM	Ok here is my take on the whole issue. Bohr's assumptions were that the subshells at one distinct energy level all contained the same energy. i.e. 2s was the same energy as 2p, which it was for Hydrogen however this didn't work for other elements because of Schroedinger's uncertainty principle which stated that we can't identify where an electron is, we can only work out the probability of it being in a certain location. The 2s shell has a small probability of being in close to the nucleus while the 2p doesn't really have the same level of probability which means that the 2s shell partially shields the 2p shell from nuclear charge. This means that 2s is held closer to the nucleus while 2p is further out meaning they possess different energy levels. Due to the magnetic field possessed by electrons caused by their rotations and spin, the 2p subshell in Sodium splits with 2 orbitals being at one energy level and 1 at a slightly different energy level. The energy released from 2p to 2s in sodium is at a yellow wavelength and the subtle energy difference results in the doublet as there is only a very small difference in energies so they have similar wavelengths leading to the creation of the Sodium doublet. I'm sorry about any innaccuracies in that and if anyone knows better than can correct me cause that was just off the top of my head so I've probably got something wrong.

3 Aug 2004, 7:43 AM	#24 (permalink)
randhi Member HSC: 2007 Gender: Male Join Date: Mar 2004 Posts: 177 Last Activity: 6 Jun 2006, 6:19 PM	Thanks cam!! i get it now.