Concepts

Heisenberg Uncertainty Principle

It is impossible to measure simultaneously both the position and momentum with accuracy for microscopic particles

Plank’s Quantum Theory

Radiant energy emitted is in the form of small energy packets called quantum or photon

Electromagnetic Spectrum

Arrangement of electromagnetic radiations in the increasing order of wavelengths

Isosters

Molecules having same number of atoms and same number of electrons

Isoelectronic

Atoms, Molecules and Ions having same number of electrons

Isotones

Atoms having same number of neutrons but different mass numbers

Isobars

Atoms of different elements having same mass number

Neutrons

Subatomic particles having no charge

Protons

Subatomic particles having one unit positive charge

Electrons

Fundamental subatomic particles carrying one unit negative charge