Which of the following is superoxide?

Newland’s law of Octaves is only valid until calcium.

The element ________ is also known as Unnilunium.

X(g) → X+(g) + e–. What does this chemical reaction need to occur?

The p-block elements along with s-block elements are called as ____ elements.

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

3d transition series starts from _____ and ends with ______

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