The description of the modern periodic table
The modern periodic table consists of 7 horizontal periods and 16 vertical groups (18 vertical columns). The elements of the modern periodic table are classified into 4 blocks (s, p, d, and f).
Tagged: Elements classification
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...