Can A Pressa Beat A Tosa ?

metals, non - metals and metalloids ..... The chemistry of carbon

elements belonging to groups 3, 4 and 5 A include both metals and non - metals.
The metallic character of the elements increases as you go down the table and the last member of each group shows metallic properties.
The classification of elements as metals or non - metal case based on their electronic structure and are
- M Etalle : Elements with a number of outer electrons low, less than or equal to that of the external orbital sep, and with low ionization energy. Therefore, the transition elements, the lanthanides and attinoidi have 1 or 2 electrons if the metallic character increases going down each group;
- N on-metal : elements with numbers greater than the number of electrons outside the outer orbitals sepe with high ionization energy.
- In addition there are the metalloids : elements that can behave like metals or non-metals in particular situations, are those of the border between the two types.