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).
Metalloids are semi-metallic elements that have the properties of both metals and nonmetals. It is difficult to know the metalloids from their outermost electrons due to the difference in the number of electrons in...
The modern periodic table organizes elements based on their atomic number and electron arrangement, which determine their physical and chemical properties. The uses of the elements in our lives depend on their properties. The elements...
Halogens are located on the right side of the modern periodic table before the inert gases. The halogens are elements of group 7 A (17) in the p-block, and Halogens are monovalent elements as...
