[tennis freak]

yay only 27 more post till i have 100 why do you care so much

[jcamry]

I am retarded at chemistry i need help

[jcamry]

 ionization enery. wtf?

[mrdeadman]

the energy required to change the element to an ion, the energy it takes to "steal" an electron from an atom.

[jcamry]

ok cool man. this is a bonding question. what is an easy way to figure out the shape of the bonds?

[mrdeadman]

what do you mean? you mean straight or bent or tetrahedral?

[jcamry]

yeah, yeah!!

[mrdeadman]

drawing the lewis structure actually works well. remember the nonbonded pairs of electrons.

[jcamry]

do you just take the lewis dot structure and the amount of sides is the shape? kinda, sorta?

[mrdeadman]

yeah, but you have to remember the VSEPR theory. nonbonded pairs take up more space than atoms do. that's why water's shape is "bent." you guys don't have those model kits where you build the molecules? those help a lot.

[jcamry]

so if a central atom has say nonbonded pairs on the top, then the other pairs are pushed down?

[mrdeadman]

then the other atoms are pushed down, that's why NH₃ is trigonal pyramidal.

[jcamry]

thanks man. i wont ask u anymore questions. i know u have to get going.

[mrdeadman]

you can ask more questions, i can answer them when i get back, either that or if you want to go that's cool too, also, you can post in teh high school forum and they will answer you stuff too.

[Will]

the energy required to change the element to an ion, the energy it takes to "steal" an electron from an atom.

I was taught that the ionization energy is the minimum energy required to remove one electron from each atom in one mole of gaseous atoms of that element at 298K and 1 atm.

yeah, but you have to remember the VSEPR theory.

Except in cases like PH₃. YOu have to think about the sizes of the orbitals of the orbitals involved in bonding etc.