O2-, F–, Na+ and Mg2+ are called as ______

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

Which was the incomplete period in the long-form of the modern periodic table?

The graph of \(\sqrt{v}\) Vs Z gives a straight line.

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

What’s the atomic number of the element Copernicium?

The location of any element in the periodic table is determined by the ______ of the filled last orbital.

What can be tested using a litmus paper?