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 ▸Explain why adding small amounts of acid or base hardly changes the pH of an acidic buffer solution.
Write down the equation for the Gibbs Free Energy change of a reaction. Hence explain why, for a spontaneous endothermic reaction, there must be an increase in the total entropy.
24.3cm^3 of 0.02moldm-3 KMnO4 reacted with 20cm^3 of iron (II) solution. Calculate the molarity of the iron (II) solution.
How do you decide what the sign of the enthalpy change should be?