In the beginning of this chapter, you learned that the quantum-mechanical model for the atom is the foundation for modem chemical understanding. Explain why this is so.
The quantum-mechanical model for the atom is the foundation for modem chemical understanding because it gives information about the followings:
(1)Wave-particle dualityLouis de Broglie proposed that all particles could be treated as matter waves with a wavelength , given by the following equation
(2)Energy is QuantizedAfter Max Planck determined that energy is released and absorbed by atoms in certain fixed amounts known as quanta, Albert Einstein took his work a step further, determining that radiant energy is also quantized—he called the discrete energy packets photons. Einstein’s theory was that electromagnetic radiation (light, for example) has characteristics of both a wave and a stream of particles.
(3)The Bohr Model of the Atom
In 1913, Niels Bohr used what had recently been discovered about energy to propose his planetary model of the...