State electron affinity should become more positive

Reference no: EM13191956

The textbook definition says that electron affinity is "the change associated with the addition of an electron to a gaseous atom."

When we go down a group, electron affinity should become more positive (less energy released), since the electron is added at increasing distances from the nucleus.

Understand that the atoms become larger as you go down a group. What I don't understand is what it means to have less energy released. Does this mean that it's easier to add an electron to a larger atom because it requires less energy for a negative ion to form?

Thought that it would be more difficult to add an electron to a larger atom because the core atoms shield the nucleus' positive charge. Thus since the nuclear charge is weaker in a larger atom, any electron coming near it won't want to bond as readily.

Reference no: EM13191956

Questions Cloud

Do the seasonal indexes make intuitive sense : Prepare a report for Karen that summarizes your findings, forecasts, and recommendations. Include.

State how many grams of solid precipitate will be formed : If a solution containing 46.46 g of mercury(II) acetate is allowed to react completely with a solution containing 7.410 g of sodium sulfide, how many grams of solid precipitate will be formed?

What is the conventoon of representing social importance : What is the conventoon of representing social importance where the pharaoh is shown much larger than his subject, is known as what?

What are the two effects of every price change : What are the two effects of every price change Given two goods, "x" and "y", if the price of "x" increases (all else equal), what do each of the effects say will happen to the consumption of "x"? After the change, what can we say about the quantity..

State electron affinity should become more positive : When we go down a group, electron affinity should become more positive (less energy released), since the electron is added at increasing distances from the nucleus.

How to show what effect was intended : One supply-side measure introduced by the Reagan Administration was a cut in income tax rates. Use an aggregatedemand/aggregate supply diagram to show what effect was intended. What might happen if such a tax cut also shifted the aggregate demand ..

Provide for existing networks : You have been given an IP address block of 172.16.0.0 /22. You must provide for existing networks as well as future growth.

What integer expresses the change in value : You withdraw $10 from a bank account once a week for four weeks. What integer Expresses the change in value?

Compute the mass of precipiate formed : Calculate the mass of precipiate formed when 110.0 mL of a 0.100M Ba(NO3)2 solution is added to 140.0 mL of a 0.100M Na2SO4 solution.

User Account

All Pages