molecular geometry

today we did a lab on the chemical formulas of elements.

we created 2d structures, 3d structures, named the geometry and their bond angles. we created 3 types of AB2, 2 types of AB3 and a single type of AB4.

we also learned that:
any electron orbital can hold 2 electrons.
a sharedelectron pair is called a covalent bond (nm + nm).
and unshared electon pair s called a lone pair.
vsepr stands for valance shell electron pair repulsion.