What is Effective Nuclear Charge?

Effective Nuclear Charge is the net positive nuclear charge experienced by a valence electron orbiting the positively charged nucleus in an atom. Effective nuclear charge is redcued by:

-increased distance between nucleus and subject electron

-increased electron shielding(more electrons between subject electron and nucleus)

-reduced number of protons in nucleus(reducing overall positive charge in nucleus)

JO

Related Chemistry A Level answers

All answers ▸

Describe and explain the trend in atomic radii across the periodic table


Propane and Chlorine react in the presence of UV light to give 2-chloropropane and HCl. Estimate the enthalpy change of this reaction using the following bond enthaplies (KJ/mol) : C-H=+413, Cl-Cl=+243, C-Cl=+346 and H-Cl=+432.


How can one differentiate between the organic compounds propanal (CH3CH2CHO) and propanone (CH3COCH3)?


Why does bromine water become colourless upon the addition of ethene, but not ethane? What is this reaction called?