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...
Group 5A (group 15) consists of five elements which are nitrogen, phosphorus, arsenic, antimony & bismuth, Elements of this group are not abundant in nature, except nitrogen which represents about 80 % of atmospheric...
The coordinate bond is considered a special type of covalent bonds that differs only in the origin of the electron pair which is shared between the atoms involved in the covalent bond, because the...
The chemical properties & some of the physical properties of the elements depend on their electronic structure and especially on the valence electrons (the electrons of the outermost level), The concept of bond length...
