electrons

[Martoman]

lololol

number of electrons in C2H2?

Is because they are sharing a tripe bond that there is only 12 +2 = 14?

The other part of my brain says to add it up and say 26....

bah i should have done some 1-2 chem T.T

[m@tty]

6+6+1+1=14 And yeh, it's because of the triple bond.

[Martoman]

lol its because its sharing right?

can you give me different examples?

[ghadz7]

you're getting 26 because you are considering the atomic mass of carbon (12). There is only 6 protons in carbon, hence 6 electrons on each. The atomic mass is the number of protons and neutrons. By the way unit 1 chemistry was the best, maybe you should have done it for general knowledge, although someone as smart as you could study it in one week

[m@tty]

2 electrons in the first shell for each carbon. Then four in the second shell(this is why it sustains four bonds; needs four more to be in the octet state). So 6 from each carbon, then one from each hydrogen. =12

Think of it like kids and toys. Each kid wants to have as many toys as the cool kids at the end of their street(the noble end, lol) So they meet up with each other and agree to share some toys. They each act as though they have a full shell but really between them they only have the same number that they started with. (EDIT: ie. the sum of the atomic numbers.)

(That is unless one of the bigger kids(non-metals) bullies a little(less electronegative) kid into giving him one for good. ie. ionic bonding)

Um, examples..

O₂ - How many electrons? There's 16, not 20, because of the double bond.

N₂ - There's 14, not 20, due to the triple bond.

CO₂ - There's 22, not 30, because of the two double bonds.

[m@tty]

Yep. That's what I was getting at, but failed to mention it XD

[ghadz7]

if you add the atomic numbers it would be easier

CO2 : C = 6  O = 8
CO2 has 6 + 8 + 8 = 22 electrons

N2: N = 7
N2 has 7 + 7 = 14 electrons

Do you see where I'm coming from?

[Martoman]

Lol i commend m@tty for using analogy to teach me  :smitten:

For practicality, i love you ghadz

[8039]

I screwed it up at first by doing 24 + 2 divided by 2 haha

Um, examples..

O₂ - How many electrons? There's 16, not 20, because of the double bond.

N₂ - There's 14, not 20, due to the triple bond.

CO₂ - There's 22, not 30, because of the two double bonds.

Haven't put too much thought into this, but isn't O2 simply 16 electrons because it's 8 + 8 electrons? (-16 protons)

Where do double bonds come into play?

[Martoman]

nah its 16.

They share in a pool.