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Lecture Comments (14)

0 answers

Post by Minali Ganguly on October 18, 2015

what is happening at 55:56, I don't understand why he put the electron configuration levels (2p 2s 2s 1s 1s) next to the ionization energies

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Post by Shahram Ahmadi N. Emran on July 1, 2013

where are the worksheets he mentions?

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Post by rajendra irani on November 2, 2012

Thanks to Prof Goldwhite. Nearly two decades after I am studying chemistry during which chemistry subject was a nightmare but now I am able to understand chemistry through Prof Goldwhite. Thanks to website too for creating such a platform where most students can learn various subjects under one roof.

IT WILL BE GREAT IF INCLUDES LECTURES FOR EDUCATING CANDIDATES TOWARDS RESEARCH, VARIOUS COMPETITIVE EXAMS SUCH AS GAMSAT/MCAT. Because many candidates look for these sources and end up with limited source provider who extracts more money with limited information/knowledge output which is opposite to

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Post by christopher perrone on October 24, 2012

where are the worksheets he mentions?

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Post by Anushri Narayan Visweswaran on August 16, 2012

Thank you Prof. Goldwhite!

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Post by Maimouna Louche on June 5, 2012

I love this website! Thanks, you make all so easy. I am reviewing for my exam. Thanks!

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Post by Erika Silva on February 22, 2012

many thanks for this website ! I loved this class , I can finally understand the subject . The explanations are so complete and easy to follow ! great teacher!!!! Great website ! It is so worth it !

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Post by rachel brower on February 2, 2012

Now I understand!

4 answers

Last reply by: Shahram Ahmadi N. Emran
Mon Jul 1, 2013 12:04 PM

Post by kristen sherman on February 3, 2011

where is the periodic table?

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Post by Abigail Duncan on November 29, 2010

I just love this website so much. Especially prof Goldwhite.

Related Articles:

Periodic Table, Electronic Configurations, Ionic Bond

  • Look at overall shape of periodic table

  • Periods and groups

  • Group names; alkali metals(1A); alkaline earths(2A); halogens(7A)

  • Learn significance of s, p, d, f

  • Do examples of building up electronic configurations of atoms and monatomic ions including transition metals

  • Look at how atomic sizes change around the periodic table

  • Positive ions smaller than parent atom; negative ions larger than parent atom

  • “Magic numbers” of electrons in noble gases show stability

  • Ionization energies and how they change around the periodic table

  • Electron affinity – important only for most electronegative elements, halogens, O, S.

  • Characteristics of ionic compounds – crystalline, high m.p., conductors; electrostatic nature of ionic bond.

Periodic Table, Electronic Configurations, Ionic Bond

Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.

  • Intro 0:00
  • Periodic Law of Mendeleev and Meyer 0:43
  • Modern Periodic Table 5:09
    • Atomic Number
    • Noble Gases
    • Halogens
    • Group Number
    • Metals
    • Groups and Periods
    • Transition Metals
    • Lanthanides
    • Actinides
  • Quantum Numbers and the Shape of the Table 12:06
  • Electron Configuration of Atoms 17:59
  • Electron Configuration of Neutral Atoms 19:49
    • Example: Elements
    • Example: Noble Gases
  • Electron Configuration of Monatomic Ions 28:40
    • Example: Elements
  • Atomic Size 37:59
    • Larger as Down a Group
    • Smaller as Across a Period
  • Sizes of Monatomic Ions 42:05
    • Example: Elements
  • Noble Gas Electron Configurations 45:52
    • Example: Elements
  • Electron Affinity 50:20
  • Ionization Energy 52:32
    • Example: First Ionization Energy
    • Periodic Table Trend
    • Example: Boron
  • Ionic Compounds (NaCl) 57:00
    • Ionic Bond (Electrostatic)
  • Additional Example 1
  • Additional Example 2