Electron Configuration Calculator

Find the electron configuration of any element. Enter an element symbol, name, or atomic number.

Enter element symbol, name, or atomic number
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Electron Configuration
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Orbital Diagram

Visual representation of electron orbitals

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Electron Configuration Details

Full electron configuration breakdown

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Element
Symbol · Name
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Atomic Number
Z
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Electrons
Total
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Period/Group
Period · Group
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Orbital Filling Details

Electron distribution by subshell

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Orbital Filling Order

Order of orbital filling

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Electron Configuration Tips

Understanding electron configuration

📊 Chemical Disclaimer: This calculator uses standard electron configuration rules. Exceptions to the Aufbau principle (e.g., Cr, Cu) are handled correctly.
Electron Configuration Calculator  •  Aufbau Principle  •  For educational purposes