3.3 - Quantum Mechanical Model
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Quantization of electrons
The whole-number multiples of wavelengths correspond to multiples of fixed quanta of energy that the electron can have.
Where is the electron located?
an orbital
Heisenberg’s Uncertainty Principle
It is impossible to know the exact position and speed of an electron at a given time.
Quantum mechanics
Does not describe how an electron moves or even if it moves. Tells us statistical probability of finding the electron in a given location in an atom. The area where we are likely to find it is called an …… ORBITAL!
Electron Probability Density:
probability of finding an electron at a given location, derived from wave equations used to determine the shapes of orbitals.
What are the types of orbitals?
four types: -s, p d and l -nucleus is at the center of each orbital
How can electrons move between orbitals?
By absorbing or emitting quanta of energy