1.

what is1. isoelectric2. cation3. anion4. catalyst5. radius of an orbit

Answer» Radius of an orbit is the the distance between the nucleus of an element to its outermost shell
Catalyst: it is the substance which increases the speed of the reaction
Cation= it is an ion or element in the reaction having (+) charge Anion= it is an ion or element having (-) chargeFor example; NaCl: Na has positive charge and Cl has negative charge


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