Question

The complete orbital notation diagram of an atom is shown.


Based on the diagram, what values can be assigned to the principal quantum number for the electrons in the atom? What information does this quantum number provide about the location of the electron?

Answer 1

The values that can be assigned to the principal quantum number (n) for the atom are 1 and 2.

The orbital notation diagram shows the number of electrons in each orbital in the atom. The arrangement of electrons of an atom into orbitals gives the electronic configuration of the atom.

From the orbital diagram shown, the electron configuration of the atom is; 1s2 2s2 2p5. The values that can be assigned to the principal quantum number (n) for the atom are 1 and 2. The principal quantum number shows the distance of an energy level from the nucleus.

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