Hydrogen is an unusual element because it behaves in some ways like the alkali m
ID: 478989 • Letter: H
Question
Hydrogen is an unusual element because it behaves in some ways like the alkali metal elements and in other ways like nonmetals. Its properties can be explained in part by its electron configuration and by the values for its ionization energy and electron affinity.
Part A
Explain why the electron affinity of hydrogen is much closer to the values for the alkali elements than for the halogens.
Hydrogen is an unusual element because it behaves in some ways like the alkali metal elements and in other ways like nonmetals. Its properties can be explained in part by its electron configuration and by the values for its ionization energy and electron affinity.
Part A
Explain why the electron affinity of hydrogen is much closer to the values for the alkali elements than for the halogens.
Explanation / Answer
Electron affinity of hydrogen is much closer than halogen because of small size of hydrogen and both have one electron required to complete their duplet and octet ao both have high electron affinity.
But in case of alkali metals they have one extra electron than octet so they easily donate one electron and have low electron affinity.
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