Orbitals with the same principal quantum number (n) are said to be in the same shell.

Question

BlackTom AI · Accepted Answer

Consider what is meant by a shell in atomic structure: the principal quantum number n identifies a set of orbitals that share the same energy region in a simple model. All orbitals with the same n are grouped into one shell, regardless of their subshell designation (s, p, d, f) within that n.

Option analysis:
- Statement: 'Orbitals with the same principal quantum number (n) are said to be in the same shell.' This aligns with the fundamental definition of a shell, which comprises all orbitals having the same n value. It includes the s, p, d, f orbitals that belong to that same energy level, within the limitations of the hydrogenic model and common teaching conventions.

Possible misconceptions to address:
- One might think shells are defined by energy alone, independent of n; however, in the standard model, the shell is specifically the group of orbitals with the same n. 
- Another confusion is confusing subshells (different l values) with shells; subshells are subsets of a shell, not separate shells themselves.
- A more nuanced point is that in multi-electron atoms, orbitals with the same n can have slightly different energies due to electron-electron interactions, but the shell concept still uses n as the defining label for grouping orbitals together.

Putting it together, the statement correctly describes the relationship between orbitals and shells in the typical chemical-physics framework, acknowledging that the shell is defined by the shared principal quantum number.

Orbitals with the same principal quantum number (n) are said to be in the same shell. 判断题

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