At the end of this unit you will be able to:

• Calculate the electrostatic and gravitational forces between two bodies or
particles

• State the Heisenberg Uncertainty Principle and calculate the uncertainty
in position or velocity of a particle or body

• Define the de Broglie wavelength and calculate same for particles and
bodies

• Explain interference and diffraction in light and electrons

• Explain the terms wavefunction, Eigenfunction and Hamiltonian operator
as they appear in the SchrÃ¶dinger Wave Equation

• Sketch the radial wavefunctions for the 1s, 2s and 2p orbitals

• Sketch the Radial Distribution Functions for 1s, 2s and 2p orbitals

• Define and depict radial and angular nodes on orbitals

• Define and give examples of principal, orbital angular momentum,
magnetic and spin quantum numbers
• Calculate the energy of the levels and the emission lines in the hydrogen
atom

• Explain the Orbital Approximation and apply it to the Helium atom

• State the Pauli Exclusion Principle, and rationalize it in terms of the
relative stability of different electronic configurations (e.g. Lithium).

• State Hund’s rule and explain it in terms of the relative stability of the
different electronic configurations of sub-shells (e.g. Carbon)
• Define Cartesian and Spherical Polar coordinates

• State advantages of expressing wavefunctions in Spherical Polar
coordinates

• Define radial wavefunction and angular wavefunction

• Calculate and plot the hydrogen 1s Radial wavefunction

• Define and calculate orbital angular momentum of an electron in different
orbitals

• Define and explain Space Quantization
• Define Ionization Enthalpy and explain its trend across the Li – Ne
period.

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