The formula to calculate the Shielding Constant (σ) is:
\[ σ = Z - 0.35 \cdot E \]
Where:
The shielding constant, often represented by the symbol \(σ\), is a value that quantifies the reduction in effective nuclear charge on an electron caused by electron-electron repulsion. It reflects the extent to which inner shell electrons shield outer shell electrons from the attractive force of the nucleus. The concept of the shielding constant is important in quantum chemistry and atomic physics, as it influences the energy levels of electrons and the chemical properties of elements.
Let's assume the following values:
Using the formula to calculate the Shielding Constant (σ):
\[ σ = Z - 0.35 \cdot E = 10 - 0.35 \cdot 2 = 9.3 \]
The Shielding Constant (σ) is 9.3.