There is a graduation of the properties of the elements in the modern periodic table and there is a relation between these properties and the electronic configuration of elements, The graduation of some properties...
Most of the transition elements are attracted to the external magnetic fields because the spin of unpaired electrons in the sublevel (d) produces a magnetic field that makes the atom attracted to the external...
The oxygenated acids (acids contain oxygen) and bases are considered as hydroxy compounds, They can be represented by the general formula (MOH), where M is the element atom, The hydroxy compounds can be ionized...
At the beginning of the nineteenth century, Berzelius was the first scientist who classified elements into two main groups (metals and nonmetals), according to their physical properties, Indeed that was before knowing anything about...
