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Effective Nuclear Charge Calculator (Bohr’s Model)
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Inputs
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Effective Nuclear Charge (Zeff) = –
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Bohr’s Model Explanation
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Bohr’s model helps visualize electrons orbiting the nucleus in discrete energy levels. The effective nuclear charge (Zeff) is the net positive charge experienced by an electron in a multi-electron atom. It accounts for the attraction to the nucleus and repulsion from other electrons (shielding).
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| Variable | Symbol | Meaning | Unit |
|---|---|---|---|
| Effective Nuclear Charge | Zeff | Net charge experienced by an electron | Unitless |
| Atomic Number | Z | Total protons in the nucleus | Unitless |
| Shielding Constant | S | Electron repulsion | Unitless |
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