Determine electron affinity, Chemistry

Assignment Help:

Q. How to Determine Electron Affinity?

Ans.

Electron affinity is the measure of an atom's tendency to form a negative ion.

Electron affinity can be measured by the amount of energy released when an electron is added to an atom to form a negative ion.

When forming a negative ion, an atom undergoes the following reaction::

atom + electron (e-) -> negative ion + energy

For example, consider the reaction by which chlorine forms a negative ion:

Cl + e- -> Cl- + 348 kJ / mole

This means that 348 kilojoules of energy are released when 1 mole of electrons is added to one mole of chlorine atoms. The following animation shows this electron affinity reaction of the chlorine atom:

Electron affinity tends to be high for nonmetals and low for metals. The general trend of electron affinity is to increase from left to right in any period and to decrease from top to bottom in a family of elements. For example, fluorine has a very high electron affinity. It is said to be very electronegative.


Related Discussions:- Determine electron affinity

Structure of a protein, Explain What is the primary structure of a protein?...

Explain What is the primary structure of a protein? Ans) The primary structure of protein is the linear sequence of amino acids that form the molecule. Modification of only s

Subject, the number of isomers pssible for hexane

the number of isomers pssible for hexane

Chemical bonding, how does chemical bonding takes place?

how does chemical bonding takes place?

Amount of heat , A 0.5 m 3 rigid tank is filled with saturated liquid wate...

A 0.5 m 3 rigid tank is filled with saturated liquid water at 200 o C. A valve at the bottom of the tank is opened, and liquid is withdrawn from the tank. Heat is transferred to t

Explain kararch effect, In the addition of the hydrogen, halide to unsatura...

In the addition of the hydrogen, halide to unsaturated alkenes in the presence of peroxides the halide adds to the carbon atom correlated to more number of hydrogen atoms and hydro

Classic flame photometric experiment, Classic flame photometric experiment:...

Classic flame photometric experiment: In a classic flame photometric experiment, a solution of the analyte is aspirated within the burner and dispersed into the flame as a fin

Explain working of mass spectrometry, Describe the principle and working of...

Describe the principle and working of Mass spectrometry with suitable diagram along with its applications. Definition of Mass Spectrometry Show the principle and working

Reading IR, i need help reading this IR chart to figure out what the compou...

i need help reading this IR chart to figure out what the compound is

221, How many grams of CO2 will be produced from burning 115.5 grams of C4H...

How many grams of CO2 will be produced from burning 115.5 grams of C4H8 with 310.5 grams of oxygen given the following equation..... C4H8 + 4 O2 = 2 CO2 +4 H2O

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd