atoms

hello iam going to teach you whats in atoms. but if your not interested in this type of subject.    click here                               

THIS IS COPIED FROM A WEBSITE

NOT MINE

                                                                                                                                                       

                                        The Electron Structure

, we cannot tell exactly where an electron is within the atom. We must, instead, find the volume which will  likely contain the electron density.  the shapes of those volumes which can contain electron density are somewhat "fuzzy". We can depict volumes of high electron density (many dots) or volumes of low electron density (few dots), as shown in the diagrams below.

• s sub-shell orbitals are always spherical--like a beach ball
• p sub-shell orbitals are dumbbell shaped
• all three p orbitals within any p sub-shell are the same except for their orientation on the x,y,z axes
• d sub-shell orbitals have different shapes, as do f sub-shell orbitals. I have included a diagram of the d sub-shell orbitals for your information, but I only want you to know the shapes of the s and p 

Cross-sections of an s-subshell orbital A spherical s subshell orbital with high (very blue) and decreasing (less blue) electron density



All s subshell orbitals are spherical, the main difference between different major shells is in the size of the sphere


electron density model                                       p subshell orbitals

d subshell orbitals Electron Configurations are a particular arrangement or distribution of electrons among different subshells and shells within an atom.
Pattern:
1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 6s² 5d¹⁰ 6p⁶
rememeber lower energy higher energy
strongest held e^- less tightly held e^-
You can see this pattern emerging from the energy levels in the diagrams above.