Ch7 Lec 5 - Revision history

Bes: /* Atomic Orbitals */

2020-04-28T13:20:10Z

Atomic Orbitals

2020-04-27T19:12:29Z

5-electrons or Boron / 6-electrons or Carbon

2020-04-27T19:10:42Z

5-electrons or Boron / 6-electrons or Carbon

2020-04-27T19:09:00Z

5-electrons or Boron / 6-electrons or Carbon

2020-04-27T19:07:05Z

3-electrons or Lithium / 4-electrons or Beryllium

2020-04-27T19:04:59Z

2-electrons or Helium

2020-04-27T19:01:57Z

5-electrons or Boron / 6-electrons or Carbon / 7, 8, 9, 10, 11, 12

2020-04-27T18:53:32Z

3-electrons or Lithium / 4-electrons or Beryllium

2020-04-27T18:49:09Z

2-electrons or Helium

2020-04-27T18:45:47Z

2-electrons or Helium

@@ Line 11: / Line 11: @@
 In the following version of the energy level diagram, i have places a few "excited" electrons...complete the following table to identify the quantum numbers with each of these electrons.
 {| border=1
-|color|| ''n - principal'' || ''l -angular'' || ''m<sub>l</sub> - magnetic''||'m<sub>s</sub> - spin''
+|color|| ''n - principal'' || ''l -angular'' || ''m<sub>l</sub> - magnetic''||''m<sub>s</sub> - spin''
 |-
 |purple ||     ||     ||    ||

← Older revision		Revision as of 19:12, 27 April 2020
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	:The electron configuration for carbon is 1s<sup>2</sup> 2s<sup>2</sup> 2p<sup>2</sup> (one - s -two, two - s - two, two - p - one)		:The electron configuration for carbon is 1s<sup>2</sup> 2s<sup>2</sup> 2p<sup>2</sup> (one - s -two, two - s - two, two - p - one)
	:::'''''Note: the electron configuration does NOT have information about which p-orbital the electron is in.'''''		:::'''''Note: the electron configuration does NOT have information about which p-orbital the electron is in.'''''
		+
		+	Can you identify each electron is the figures above using quantum numbers?
		+
		+	END of "lab"...have a great evening...bes

← Older revision		Revision as of 19:10, 27 April 2020
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	</div>		</div>

−	:The electron configuration for ~~Boron~~ is 1s<sup>2</sup> 2s<sup>2</sup> 2p<sup>1</sup> (one - s -two, two - s - two, two - p - one)	+	:The electron configuration for boron is 1s<sup>2</sup> 2s<sup>2</sup> 2p<sup>1</sup> (one - s -two, two - s - two, two - p - one)
		+	:The electron configuration for carbon is 1s<sup>2</sup> 2s<sup>2</sup> 2p<sup>2</sup> (one - s -two, two - s - two, two - p - one)
		+	:::'''''Note: the electron configuration does NOT have information about which p-orbital the electron is in.'''''

← Older revision		Revision as of 19:09, 27 April 2020
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	\|}		\|}
	</div>		</div>
		+
		+	:The electron configuration for Boron is 1s<sup>2</sup> 2s<sup>2</sup> 2p<sup>1</sup> (one - s -two, two - s - two, two - p - one)

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 |}
 </div>
 ===5-electrons or Boron / 6-electrons or Carbon===

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 ::''m<sub>l</sub>'' = magnetic quantum number...and now...we add a 4th Q#...
 ::''m<sub>s</sub>'' = spin quantum number.
 Below are the helium electron energy levels with 2 electrons...note that there is a red and blue electrons denoted by a half-arrow:

← Older revision		Revision as of 19:01, 27 April 2020
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	</div>		</div>

−	===5-electrons or Boron / 6-electrons or Carbon ~~/ 7~~, 8, 9, 10, 11, ~~12 ==~~=	+	===5-electrons or Boron / 6-electrons or Carbon===
		+	As before, the next electron is added into the next orbital, 2p. Carbon has 6 electrons so where does the 6th on go?
		+	::- it could pair up with the 5th electron, or
		+	::- it could go into its own orbital, another 2p.
		+	ANSWER: Hund's rule tell us the when filling electrons into orbitals at the same energy level that we need to fill all empty orbitals before pairing up...''if you have 2 bedrooms for your kids, the kids would not share a room until the third kid can along.''
		+	<div align="center">
		+	{\|
		+	\|[[File:energy_level_06_B.png\|400px]]\|\|[[File:energy_level_06_C.png\|400px]]
		+	\|}
		+	</div>

← Older revision		Revision as of 18:53, 27 April 2020
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	===3-electrons or Lithium / 4-electrons or Beryllium===		===3-electrons or Lithium / 4-electrons or Beryllium===
		+	in the 3-electron system or lithium, the 3rd electron goes into the 2s orbital. Additionally, the 4-electron system or Beryllium fills the 2s orbital:
		+	<div align="center">
		+	{\|
		+	\|[[File:energy_level_06_Li.png\|400px]]\|\|[[File:energy_level_06_Be.png\|400px]]
		+	\|}
		+	</div>

	===5-electrons or Boron / 6-electrons or Carbon / 7, 8, 9, 10, 11, 12 ===		===5-electrons or Boron / 6-electrons or Carbon / 7, 8, 9, 10, 11, 12 ===

← Older revision		Revision as of 18:49, 27 April 2020
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	[[File:energy_level_06_He.png\|600px]]		[[File:energy_level_06_He.png\|600px]]
	</div>		</div>
		+
		+	===3-electrons or Lithium / 4-electrons or Beryllium===
		+
		+	===5-electrons or Boron / 6-electrons or Carbon / 7, 8, 9, 10, 11, 12 ===