Tagged: The lanthanides

February 4, 2015

The lanthanides and actinides in the modern periodic table

Lanthanides and actinides Lanthanides and actinides are located below the modern periodic table, They consist of two rows, They are known as the f-block elements because they have valence electrons in the f-shell, Lanthanides...

The Matter

September 5, 2014

Attempts of elements classification, Mendeleev, Moseley and Modern periodic table

The scientists classified the elements according to their properties to facilitate their study and to find a relationship between the elements, and their chemical and physical properties. The modern periodic table was developed by...