Question

Electron affinity, EA is a measure of the energy change that occurs when a gaseous

atom gains an electron:

(a) Explain why gaseous Li atoms can form negative ions (EA = -59.6 KJ mol-1

)

whereas Argon cannot. (2 m​

Answer 1

The atoms of Lithium are the atoms of the only alkali metals which CANNOT form negative ions or lithides or alkalides...

THAT'Z A CHALLENGE...!!!

The atoms of all the other alkali metals form negative ions...