In the present periodic table containing 118 elements: How many transuranic elements exist?
26 transuranic elements exist in the periodic table.
Hence, the number of transuranic elements in a periodic table is 26.
In the present periodic table containing 118 elements: How many zero group elements exist?
In the present periodic table containing 118 elements: How many alkali metals exist in a periodic table?
In the present periodic table containing 118 elements: How many lanthanides exist?
In the present periodic table containing 118 elements:
How many elements belong to the third group?
How many elements belong to the third period?