I love Science and maths :D This blog i will post random parts of my As levels that will teach you how to do As chemistry, physics and maths :)

Tuesday, 22 March 2011

Basic chemistry, and how many electrons do atoms have + in what shell of electons?


Hey guys, i thought i'll share abit about myself today...
I study chemistry, and thought i'd teach you a little something about chemistry :D
As you can see above there is a table, this is the periodic table... each element every discovered is shown here.

Okay what makes each element different?
Well Each element consists of protons, neatrons and electrons, protons have a positive charge and electons have a negative charge, and you guessed it neatrons are neatral :D, each element has a different number of electrons neatrons and protons :) electrons and protons are the same amount unless the atom is unbalanced in charge, i.e the atom is overall positive +1 or +2 etc etc


Here is the orbit of electrons around the nucleus, how do you know how many electrons are in each shell (the path what elecrons follow around the nucleus, each shell is abit further out than the one before) ? This is where it gets a little tricky... Each atom if its big enough its basic structure is 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 - the first number shows the shell its on, the second number is the amount following this path around. If you look at the periodic table and work horizontally (left to right) first is hydrogen then its helium, the number above it is the amount of electrons in the shell so hydrogen has 1 and helium has 2. For the elements lower down, the number of the row down shows what shell its on so say its 4 down its going to be in the 4s2 4p6 4d10 area, look at ZN - Zinc it says 12 above it, so count along, 4s2, 4p6.. thats 8 of the 12, so now its 4d4. Its 4d4 because that area of the shell has 10 spaces for electrons and only 4 are left.

That is a easy way to find out how many shells there is and how far into the shell it is.

I'll post more details later about atoms and there structures later :)
what you think guys? Will accept critisism :)

41 comments:

  1. really interesting stuff bro :)

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  2. thanks for the chemistry shit! good thing i don't have to take it anymore in college ;)

    supported!
    collegeanon.blogspot.com

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  3. Does anyone remember the song you had to sing in school to remember them all?

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  4. http://www.youtube.com/watch?v=GFIvXVMbII0
    this song? :P

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  5. reminds of being in highschool. Oh how i wish i could go back. I want to learn more about this stuff.

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  6. I too wish I could go back to HS. I miss those days.

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  7. i'll try to keep regular posts of what i learn in lessons guys, maths physics chem kid here :)

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  8. I'm glad im not in high school :)

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  9. I hated this in college as much as I did in High School

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  10. Like what Major said, I'm glad I'm out of school. Means I don't have to do chem anymore. :P

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  11. I've almost forgotten all this already, but I love chemistry. Keep it up

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  12. I like chemistry, but never got very good at it. This was a nice read, thanks.

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  13. Thanks for the refresher; I might be able to talk to someone about this someday.

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  14. I enjoy the thought of chemistry... you know a stylized perfect world where I'm in a lab, mixing beakers of chemicals. But as soon as someone mentions protons and electrons my brain just shuts down :D Nonetheless, this was a good read, thanks!

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  15. I always liked this stuff in school but was terrible at it

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  16. i want chemistry back.. now i only have physics

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  17. I had to do this for GCSE chemistry. Was very boring :(

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  18. Ver informative, good post!

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  19. nice blog!
    followed!

    http://all-around-toto.blogspot.com/

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  20. it starts off with gcse chemistry, but the shell naming 1s2 etc is first unit of As level chemistry :)

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  21. My head is spinning... maybe I'll lear a bit from you.

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  22. Shouldn't have burned all those braincells drinking :(

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  23. I remeber when i had to do this stuff in highschool

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  24. hah oh i hated chem 1 & 2 i'm so glad to be through them but good luck on your chemistry major

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  25. the number one thing that had always intreged me about elements or chemistry in general is the octave rule (i think thats what is called). why are atoms seeking for that number 8? there must be something to that, that maybe even answer questions unknown about life. great post learned a lot btw!

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  26. Oh man, I hate doing Chemistry. It's not hard, but it's soooooo tedious.

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  27. Lol I did this in college, seems so simple reading over it now.

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  28. Takes me back. Maybe i should go back to college...

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  29. agrees with emceep!

    following tho could learn a few things :P

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  30. man, i do NOT miss high school at all when i read this! :P

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  31. Is this like DNA? :P I dont really get it :P

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  32. Hey! Awesome geeky blog! I remember my chemistry courses in my 1st year. Good old days.

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