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Science Lessons on Matter, Atoms & the Periodic Table : What are Electrons?



The electrons of an atom represent the energy levels, and there are usually as many protons as there are electrons. Understand how each level carries a prescribed number of electrons with important facts from a science teacher in this free video on fundamental physics.

Expert: Fiona Finke
Bio: Fiona Finke is a science teacher who likes to explain how a better understanding of the universe will help us in our daily lives.

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  1. Israel Socratus

    October 20, 2009 at 5:54 pm

    Atom : Electron & Proton / new idea /

    Pauli wrote in 1924
    " Each quantum state in the atom is not limited
    of two electrons, but only of one electron"

    It means in the atom can be only one single electron
    The electron manages the atom
    If the atom contains more than one electron
    (for example two) this atom represents Siamese twins
    Save us God of having such atoms and cells

    All living being begins its life from one singe atom, cell

  2. Kevin Holland

    December 14, 2009 at 2:21 am

    you are a parrot. this bs you tell is an idiotic scam. current atomic theory is wrong. this is easy to prove. mam, try thinking a little bit before polluting the minds of youngsters.

  3. Kevin Holland

    October 29, 2010 at 3:09 am

    Noone knows. Mr. Tesla pointed out the tendency of modern scientists to adapt theory to math equations. The nuclear contradiction existed unquestioned for decades. A few decades back one of these scientists dreamt up the gluon of all things to accomodate this contradiction. Apparently, there are now 5 fundamental forces of the natural world. Today, I like the concept of an electrical explanation of matter. Thunderbolts of the Gods. How about you?

  4. dherma

    February 26, 2011 at 1:50 am

    Did she say a hydrogen atom has one neutron? Oy. Deuterium, maybe.

    But I'm kind of with some others on this video – I was taught the Bohr model in high school (only about five years ago!) and now that I'm taking university level chemistry I see how deceptive it is. To think of atoms as miniature solar system is grossly inaccurate.

  5. Jose Suarez

    February 27, 2011 at 4:23 pm

    With all due respects, the following is a reproach to the atomic theory and not your presentation that is well represented by your knowledge of the atomic theory.
    I've created a theory that's representative of actual values rather that an abstract from an imaginary plane that is continuously being modified to satisfy the fancy of the imagination of those that fail to challenge its validity and that are programed to accept these misrepresentations about the atom.

  6. Jose Suarez

    February 27, 2011 at 4:32 pm

    @jqs1943 The atomic theory as generally introduced to students is an abstruce and boring subject that's inconsequential to the reality of all that is of a creative nature which is representative of the universe's intelligenge, or the Theta waves of the universe.
    If you will; check out in you tube jqs43. and if afterwards you which to learn about my theory on the atoms, you may contact me by email at:

  7. Jose Suarez

    February 27, 2011 at 4:37 pm


  8. fewk yew

    February 28, 2011 at 1:20 am

    Bitch, I just wanted to know what an electron was I didn't want to hear your life story.

  9. The Panthian

    July 7, 2011 at 10:12 pm

    If it takes 6 electrons and 1 positron to make a proton, then how is it that one or more electron orbits a nuclues that is made up of electrons to begin with?

  10. carlo sgroi

    August 16, 2013 at 10:16 pm

    Unfortunately I am losing my confidence in theoretic atom structure as to what now is understood by Bores as the primal concept of *the atomic # * if anywhere accurate… please… how is this related to dynamic conditions greater than static, how do you established atoms and electrons constituents as correct… based on dynamics of universal environments and the probability as to the theory of quantum physics. This is an oxymoron. Sorry ,& I must say, very controversial on my part

  11. slayerette86m

    September 28, 2013 at 5:59 am

    Go wash your mouth with soap!

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