Quantum Physics
Use this quantum number calculator to calculate check simple quantum number ranges, shell capacity, and orbital counts.
Calculator
Choose what you want to calculate, enter realistic values, adjust units where shown, and use the scenario section for repeated-use planning.
Principal number controls shell capacity; l controls the number of orbitals in a subshell.
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Shell capacity = 2 n^2
This calculator applies the formula Shell capacity = 2 n^2. Enter each value with the matching unit, and AZCalculate updates the result instantly.
Assumptions
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This step transforms the known values into the form required by the formula.
Apply the formula: Shell capacity = 2 n^2.
This step transforms the known values into the form required by the formula.
Review the primary result and supporting values.
Compare the result with your real-world goal, such as study atomic quantum numbers.
Worked example
Maximum electrons in shell: 18 electrons; Orbitals in subshell: 3 orbitals
Calculator guide
Check simple quantum number ranges, shell capacity, and orbital counts. This page includes an interactive calculator, concise formula notes, worked examples, FAQs, related calculators, and practical guidance you can revisit whenever needed.
References
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FAQ
It uses Shell capacity = 2 n^2 and calculates the result from the values you enter.
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