Aufbau principle : ‘Aufbau’ is a German word meaning ‘building up’. The building up …
Quantum mechanical model of atom : A new branch of science, called quantum machanic…
Explanation of the line spectrum of hydrogen using Bohr theory : The line emission s…
Bohr’s model for hydrogen atom : Niels Bohr (1913) put forth his postulates about …
Developments leading to the Bohr’s atomic model : At the time when different model…
Atomic number and atomic mass number : The number of protons in the nucleus is chemic…
Subatomic particles : Dalton’s atomictheory was able to explain the laws ofchemical …
Chromatographic techniques : Chromatography is a technique used to separate componen…
Distillation : Distillation is an important method used to separate. (i) Volati…
Introduction : There has been a systematic development in the techniques used for a…