Adding electrons to an atom will result in-

Which of the following does NOT represent a pair of isotopes?

In an adiabatic process of an ideal gas PVγ = constant where

In ferromagnetic material what is the size of typical domain and how many numbers of atoms individual domain contain?

Standard base pairing in DNA occurs due to which type of bonding?

Identify the element with an electronic configuration 2,8,1 from among the following options.

Which of the following pairs represents isobars ?