The principal energy level of an atom which contains an electron with the lowest energy is: A) n = 1.
The principal energy level of an atom can be defined as the atomic orbital or shell in which the electron found in the atom of a chemical element is located with respect to its atomic nucleus.
This ultimately implies that, the principal energy level of an atom refers to the different energy levels where the electrons found in the atom of a chemical element are located at specific distances from the atom's nucleus.
In Chemistry, the principal energy level of an atom is denoted by the principal quantum number (n).
Where:
In conclusion, the lowest principal quantum number (n) is one (1) while the highest principal quantum number (n) is eight (8).
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