Question

Which table is known as a long-form of the periodic table?

Answer 1

• The modern periodic table is called a long-form of periodic table since if compare to Mendeleev's Periodic table, then it is longer and has the capacity to accommodate those elements which have been discovered and also which were not discovered at the time of Mendeleev.
• There are a total of 118 elements arranged in 7 periods and 18 groups in the modern periodic table.