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 ▸

Flask Q (volume = 1.00 x 103 cm3 ) is filled with ammonia (NH3) at 102 kPa and 300 K. The tap is closed and there is a vacuum in flask P. (Gas constant R = 8.31 J K−1 mol−1 ) Calculate the mass of ammonia


In the presence of carbon monoxide, less oxygen is transported to the blood. Suggest why, in terms of bond strength and stability constants.


Predict whether the lattice energy of magnesium oxide, MgO, is more or less exothermic than the lattice energy of magnesium sulfide, MgS. Justify your answer in terms of the sizes and the charges of the ions involved.


What product is formed upon addition of dimethylamine to ethanoyl chloride? Provide a curly-arrow mechanism for the formation of this product.