Subshell
| Also Known As | Orbital subshell, atomic subshell, quantum subshell |
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What is Subshell?
A group of orbitals with the same principal quantum number (n) and angular momentum quantum number (l). Subshells are designated s (l=0, 1 orbital), p (l=1, 3 orbitals), d (l=2, 5 orbitals), and f (l=3, 7 orbitals). Each subshell can hold a maximum of 2(2l+1) electrons.
Properties & Characteristics
Uses & Applications
Safety Information
Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.
Key Facts
Frequently Asked Questions
A group of orbitals with the same principal quantum number (n) and angular momentum quantum number (l). Subshells are designated s (l=0, 1 orbital), p (l=1, 3 orbitals), d (l=2, 5 orbitals), and f (l=3, 7 orbitals). Each subshell can hold a maximum of 2(2l+1) electrons.
Subshell filling order is used to write electron configurations and predict chemical properties. The d subshell filling explains the properties of transition metals. The f subshell filling corresponds to the lanthanide and actinide elements in the periodic table.
Subshell is a theoretical atomic structure concept with no direct safety implications. Knowledge of subshell occupancy predicts which elements are highly reactive or radioactive.