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sci.atomic-radius Calculator
Calculates atomic radius trends across the periodic table using effective nuclear charge and shielding, and converts between covalent, van der Waals, and metallic radii. Atomic radius decreases across a period (increasing Z_eff) and increases down a group (additional electron shells).
Inputs
Z
Count of items or occurrences.
N Shell
Original borrowed or invested amount before interest. Interest accrues on the outstanding principal balance.
Z Eff
Reference formula or conversion factor shown for context.
N Electrons
Reference formula or conversion factor shown for context.
Results
Bohr radius estimate (pm)
The computed radius -- half the diameter.
shielding constant
Sample size or count used in the calculation.
n (shell)
Sample size or count used in the calculation.
Z_eff
Reference formula or conversion factor shown for context.