a. Electron affinity is higher for C than N as Nitrogen has half filled orbital

Question

a. Electron affinity is higher for C than N as Nitrogen has half filled orbital thus less exothermic

The electron affinity of Br is higher than Ar, As Argon has a completely filled orbital, in order to as electron the process will be extremely endothermic.

b. Higher ionization energy - Nitrogen, as the electron is removed from half-filled state which requires more energy

Higher ionization energy - Argon, as the electron is removed from complete filled state which requires more energy

c Larger size - Carbon, as the atomic size decreases along a period

Larger size - Br, as the atomic size increases down the group

Explanation / Answer

95. For each of the following pairs of elements (C and N) (Ar and Br) pick the atom with a. more favorable (exothermic) electron affinity. b. higher ionization energy c. larger size.

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