What are the important features of quantum mechanical model of an atom?
What are the important features of quantum mechanical model of an atom?
(i) The energy of electrons in atoms is quantized. (ii) The existence of quantized electronic energy levels is a direct result of the wave like properties of electrons. (iii) Both the exact position and exact velocity of an electron in an atom can not be determined simultaneously (Heisenberg uncertainty principle).
What does the quantum mechanical model of the atom?
Erwin Schrödinger proposed the quantum mechanical model of the atom, which treats electrons as matter waves. ... Electrons have an intrinsic property called spin, and an electron can have one of two possible spin values: spin-up or spin-down. Any two electrons occupying the same orbital must have opposite spins.
What are the main features of quantum number?
To completely describe an electron in an atom, four quantum numbers are needed: energy (n), angular momentum (ℓ), magnetic moment (mℓ), and spin (ms). The first quantum number describes the electron shell, or energy level, of an atom.
Why is quantum mechanical model of the atom important?
The quantum mechanical model is more than necessary in order to explain the atom behavior in the nanoscale world. Quantum theory is the only reliable theory that scientists have in their arsenal in order to interpret the nature of the quantum world and justify the various experimental results.