Question

Define the following:
1.Lone pair
2.Super Saturated solution
3.Water of crystallisation
4.Isotopes
5.Ion
6.Electronic Configuration.

Answer 1

Lone pair is a pair of electrons occupying an orbital in an atom or molecule and not directly involved in bonding.

Supersaturation is a state of a solution that contains more of the dissolved material than could be dissolved by the solvent under normal circumstances. It can also refer to a vapor of a compound that has a higher (partial) pressure than the vapor pressure of that compound.

Water of Crystallisation is water molecules forming an essential part of the crystal structure of some compounds.

Isotopes are each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei, and hence differ in relative atomic mass but not in chemical properties; in particular, a radioactive form of an element.

Ions are atoms (or groups of atoms) which carry an electric charge because they have either gained or lost one or more electrons. If an atom gains electrons it acquires a negative charge. If it loses electrons, it becomes positively charged. The electronic structure of s- and p-block ions.

The electron configuration is the distribution of electrons of an atom or molecule in atomic or molecular orbitals.

Answer 2

electronic configuration said to be the distribution of electrons of an atom or molecules (or other physical structure) ,which is useful for describing chemical bonds that hold atoms together
isotopes are known to be the atoms which have same chemical properties but different physical properties, and same number of protons and electrons but different number of neutrons.