2.2 Arrangements of shells around the nucleus: Hydrogen spectrum
Þ So now the question is how are the shells arranged around the nucleus? (Equal spacing? Variable spacing?)
The arrangement of the
shells come from emission spectrum of hydrogen.
Energy takes various different forms. Heat, light, sound are some forms. Heat energy changes can be observed easily by monitoring temperature changes—subject matter Thermochemistry deals with. Its frequency
(or wavelength) can characterize light (as
well as sound) energy. Visible light is
only a small range of frequencies of
energies in the long range of
electromagnetic radiation. X-ray,
ultra-violet rays are some of the more
energetic—higher frequency—radiation than
visible light, while infrared and
microwaves are less energetic.
OHP of the
spectrum of electromagnetic
radiation.
Visible light itself comprises of different color lights, each of different frequency, i.e. different energy.
The specific amount of energy associated
with a specific light (or radiation) is
referred to as a photon of energy. A photon of energy is a
packet of energy. And so, each light is a
specific packet of energy, specific quanta of
energy; it is a discrete value of
energy.