What is the correct order of electronegativity among the following options?

The Lanthanoid series is the same as the Actinoid series.

In Mendeleev’s periodic classification, what is the number of groups?

What’s the name of the 109th element as per the nomenclature?

The element ________ is also known as Unnilunium.

What’s the symbol of the element Unnilquadium?

The periodic functions of the ______ are the properties of respective elements.

In olden days, as a privilege to the discoverer, the elements were named as they suggested by IUPAC.