The modern periodic table, created by Dmitri Mendeleev, listed elements in ascending atomic mass order. Groups of elements with similar physical and chemical properties constitute the columns. The elements in Group … Read more
According to modern periodic law- The physical and chemical properties of the elements are the periodic function of their atomic numbers and electronic configuration. Chemical properties are observed during chemical … Read more
The elements of period 3 are placed in the third row of the periodic table. The elements positioned in period 3 are Sodium (Na), Magnesium (Mg), Aluminium (Al), Silicon (Si), … Read more
