I need to describe the organization of the periodic table

Elements are arranged from left to right and top to bottom in order of increasing atomic number

Explanation:

This is what I remember from Chemerstry a few years ago

i believe that it is a exoplanet

a. energy is absorbed in the reaction.

if in a given reaction the energy of products is greater than the energy of reactants it means that reaction is endothermic and during the reaction, the energy is absorbed by reactants. in an endothermic reaction, the products have more stored chemical energy than the reactants. and in this reaction the reactants are more stable than products before the compounds with less energy are always more stable.