Question

Modern periodic table explain

Answer 1

Answer:

The modern periodic table is used to organize all the known elements. Elements are arranged in the table by increasing atomic number. In the modern periodic table, each element is represented by its chemical symbol. ... Rows of the periodic table are called periods..

The modern Periodic law can be stated as: “The physical and chemical properties of the elements are periodic functions of their atomic numbers”. The atomic number is equal to the number of electrons or protons in a neutral atom.

The long form of periodic table consist of vertical columns called groups and horizontal rows called periods. Elements are arranged in the increasing order of atomic numbers. Elements in the modern periodic table are arranged in 7 periods and 18 groups.

Answer 2

Answer:

Modern periodic table, commonly known as Periodic Table, is a tabular arrangement in which chemical elements are arranged to according to their atomic numbers, configuration of electrons and chemical properties. A Modern Periodic Table consists of four blocks, i.e "S", "P", "D" and "F".