Aufbau Principle: Indicate which of the given electronic configurations are true ground state configurations for the respective atoms and which are false. (Take care! There are some exceptions to the simple rules.) Au ---> [Xe]4f145d106s Sc --> [Ar]4s13d2 F ---> 1s22s22p5 Si ---> 1s22s22p63d23s2 Rn ---> [Xe]4f145d106s26p67s2
Electronic Transitions and Spectroscopy
The term “electronic” connotes electron, and the term “transition” implies transformation. In a molecule, the electrons move from a lower to a higher energy state due to excitation. The two energy states, the ground state and the excited state are the lowest and the highest energy states, respectively. An energy change is observed with this transition, which depicts the various data related to the molecule.
Photoelectron Spectroscopy
Photoelectron spectroscopy (PES) is a part of experimental chemistry. It is a technique used in laboratories that involves projecting intense beams of radiation on a sample element. In response, the element ejects electrons for which the relative energies are measured.
Aufbau Principle:
Indicate which of the given electronic configurations are true ground state configurations for the respective atoms and which are false.
(Take care! There are some exceptions to the simple rules.)
Au ---> [Xe]4f145d106s
Sc --> [Ar]4s13d2
F ---> 1s22s22p5
Si ---> 1s22s22p63d23s2
Rn ---> [Xe]4f145d106s26p67s2
Answer is NOT:
FFTFF, TFTFT, and TTTFF (I've tried all that, not right)
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