Question

Name the atomic parameters which does not have any unit

Answer 1

Atomic weight
Arrhenius number
Archimedes number
These all don't possess Unit as well as dimension

Answer 2

Hello friend,

● Atomic parameters -
- Quantities which help to describe (give information about) an atom are called atomic parameters.
- Commonly used atomic parameters are - atomic number, atomic mass number, valency, ionization enthalpy, atomic radius, etc.

Following atomic parameters doesn't have any unit -
- Atomic number
- Nuclear charge
- Valency
- Metallic character
- Electronegativity

Hope this helps you.
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