More ideas from tahsin
This is a periodic table in which the elements are ordered by the energy level of their subshells and by the number of electrons in their outer subshell.  This layout makes it easier to understand how the properties of all elements relate to the orbital structure of the atom.  The table maintains periodicity, and gives the electron configurations required in modern chemistry but missing from the traditional table.

This is a periodic table in which the elements are ordered by the energy level of their subshells and by the number of electrons in their outer subshell.

help with functional groups for Chemistry

In organic chemistry, functional groups (or reactive centers) are small structural units within molecules that dictate how most of the compound’s chemical reactions occur. Know these common functional groups you will run into in organic chemistry: