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astrogirl15

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Posts posted by astrogirl15

  1. Ok, so I was thinking. Each element in the universe seems to have a color related to it. I'm sure this is either incorrect, or there are exceptions.

     

    Basicly, I would like to know How a specific color portreys itself.

     

    I am under the understanding that Color is measures in wavelengths, yes?

     

    This means that one color would have the wave lengths closer together then another. This is how we differentiate, correct?

     

    So how is it that the reflection off an item, reflects the color of that item? Does the reflection slow the light or something? Ummm, maybe it soaks up some of the energy emitted from the light, leaving a slower wave length?

     

    There has to be some logical explantion, and I think this would be very good puzzle peice that I can put into my brain of "my understanding of the universe".

     

    P.S. I know that I cant completely finish the puzzle, but i'd like to get as much done as I can before my time is up! :rolleyes:

  2. Perfect!!!

     

    my only question is.......... where in science can we just look at a diagram and guess out of the blue that "hey look, that hydrogen doesnt have an electron".

     

    how is anyone saposed to know that one of the Hydrogen hasnt an electron? How can i recognizethis for future reference

  3. i get it :D

     

    So the N has a + next to it becasue it HAD 8 electons in its covalance shell due to the 3 hydrogen, but then the carbon took one.. so now it has 7.. which means it has 9 electrons and 10 protons.. which gives it a positive charge...

     

    correct?

  4. I know this is homework... and I know I'm not supposed to give the entire answer.

     

    But I also know that you will get much more than this one exercise... so I'll just show how it all fits together, then you can do all the other exercises yourself.

     

    In the picture below, the two formula's are the same! On the left is the "easy" way which is popular because it takes less time to write. The right is the "complete" version. Note that each carbon atom has 4 lines attached to it (4 bonds, sometimes it's a double bond, noted with a =).

     

    Note also that the neutral nitrogen has 3 bonds. The neutral oxygen has 2 bonds. The nitrogen with 4 bonds has a +, because the nitrogen itself lost an electron. That also means that it can have not 3, but 4 bonds.

     

    The oxygen got an electron (probably from the nitrogen) and it can now no longer have 2 bonds, but only 1.

     

     

    Ok. Wow. 1st. I am 15. I'm not in a chemistry class. So this isn't cheating on any homework. Just, my dream is to be an astrobiologist when I grow up. So i need to understand amino acids completely.

     

    I'm sure I will have alot of questions. This is alot of information though, so I will have to go through it a couple times.

     

    Thank you both very much for your answers though. :)

     

    If the hydrocarbon "CH" has 6 electrons and 1 electron.. so thats 5 in its 2nd shell... It shares one with the ammonia... which makes the ammonia unstabe? And it shares one with the carbon dioxide.. which makes it unstable... and shares one with the hydrocarbon to its left... this adds up to 8 electrons.. which makes it stable... but what happens to the ammonia "NH3", and the "CO2" which was already stable.. and now isnt....

  5. histidine.gif

     

     

    I have researched each compound.

     

    NH3 is stable.

    CH is unstable The Carbon atom wants 3 more electrons in its 2nd shell.

    CO2 is stable.

    CH2 is unstable. The Carbon atom wants 2 more electrons in its 2nd shell.

    N is unstable. It needs 3 more electrons in its 2nd shell.

    NH is unstable. It needs 2 more electron in its 2nd shell.

     

     

     

    So how does it all fit together?

  6. The compound Ammonia is made up of one Nitrogen, and 3 Hydrogen.

     

    On the periodic table I see that Nitrogen has 7 protons, and 7 electrons. I also see that each Hydrogen has 1 proton, and 1 electron.

     

    I am told that Ammonia is held together through a Covelant Bond. My question is: how does this work?

     

    My only guess is that Nitrogen has 6 electrons in its 1st electron cloud, and only 1 in its 2nd. This would make it want more, correct? Also Hydrogen only has 1. This would make it want more correct?

     

    Please clerify this if you can. :(

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