Question

What is modern periodic table??​

Answer 1

Answer: The Modern Periodic Table is an organized arrangement of all the elements on the basis of their atomic number rather than their atomic mass. It was developed by Henry Moseley.

Step-by-step explanation:

The first proper arrangement of elements on the basis of their atomic mass was done by Dmitri Mendeleev, hence it was called the Mendeleev's periodic table. However, due to the observation of some anomalies in the table, a new method of arrangement was emphasized on. Finally the Modern Periodic Table was established and has been used since.

Answer 2

It’s a table used to organize all the known elements by increasing an atomic number. Rows of tables are called periods.