Quantum mechanics (QM --
also known as quantum physics, or quantum theory) is a branch of physics which
deals with physical phenomena at nanoscopic scales where the action is on the
order of the Planck constant. It departs from classical mechanics primarily at
the quantum realm of atomic and subatomic length scales. Quantum mechanics provides
a mathematical description of much of the dual particle-like and wave-like
behavior and interactions of energy and matter.

Quantum mechanics provides a
substantially useful framework for many features of the modern periodic table
of elements including the behavior of atoms during chemical bonding and has
played a significant role in the development of many modern technologies. Watch the video below and learn everything about quantum mechanics:

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