Which of the following properties of atom could be explained correctly by Thomson Model of atom?
(i) Overall neutrality of atom.
(ii) Spectra of hydrogen atom.
(iii) Position of electrons, protons and neutrons in atom.
(iv) Stability of atom.
Which of the following is responsible to rule out the existence of definite paths or trajectories of electrons?
(i) Pauli’s exclusion principle.
(ii) Heisenberg’s uncertainty principle.
(iii) Hund’s rule of maximum multiplicity.
(iv) Aufbau principle.
Chlorophyll present in green leaves of plants absorbs light at 4.620 × 1014 Hz. Calculate the wavelength of radiation in nanometer. Which part of the electromagnetic spectrum does it belong to?
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