Hydrogen (H)
Atomic Number (Z): 1; Shielding Constant (S): 0
Effective Nuclear Charge (Zeff): 1
Effective Nuclear Charge Calculator
Chemistry0.0(0)
Calculates the effective nuclear charge (Zeff) experienced by an electron in an atom, taking into account the shielding effect of other electrons.
More tools:Science & Lab Calculators
How To Use
How to use this calculator
Start with your values, or try a preset.
Step 1
Enter Atomic Number (Z) and Shielding Constant (S) in the units shown.
Step 2
Read Effective Nuclear Charge (Zeff) in the results panel. Results update as you change the inputs.
Step 3
Choose a preset to load an example, then adjust the values for your situation.
Worked Examples
Example calculations
See the inputs and their calculated results.
Helium (He)
Atomic Number (Z): 2; Shielding Constant (S): 0.3
Effective Nuclear Charge (Zeff): 1.7
Lithium (Li)
Atomic Number (Z): 3; Shielding Constant (S): 1.7
Effective Nuclear Charge (Zeff): 1.3
Explore the topic
Explore More Science & Lab Calculators
Find calculators for chemistry, biology, lab dilution, concentration, osmolarity, genetics, physics, and experimental planning.
People Also Calculate
Related Calculators
Continue with another tool on a related topic.
Chemistry
STP Calculator
Calculates the volume or number of moles of a gas at Standard Temperature and Pressure (STP). STP is defined as 0°C (273.15 K) and 1 atm pressure. This calculator uses the ideal gas law to perform these calculations.
1,476 viewsOpen calculator
Chemistry
Melting Point Calculator
Calculates the melting point of a substance based on the provided pressure. This calculator uses a simplified model and is most accurate for substances with well-defined melting points. Note: This calculator provides estimations and should not be used for critical applications.
1,463 viewsOpen calculator
Chemistry
Osmotic Pressure Calculator
Calculates the osmotic pressure of a solution using the van't Hoff equation. Osmotic pressure is the minimum pressure which needs to be applied to a solution to prevent the inward flow of water across a semipermeable membrane.
1,415 viewsOpen calculator
Chemistry
Van't Hoff Factor Calculator
Calculates the Van't Hoff factor (i), which represents the number of particles a solute dissociates into in a solution. This factor is important in colligative properties calculations.
1,383 viewsOpen calculator