Consider the following neutral electron configurations in which n has a constant value. Which configuration would belong to the element with the most negative electron affinity, E-ea? a. ns^2
b. ns^2 np^2
c. ns^2 np^5
d. ns^2 np^6

The correct answer to the question is Option C. ns² np⁵

Let n represent the valence shell.

NOTE: Valence shell is the outermost shell of an atom.

Thus, we shall determine the valence electrons for each options given in the question.

Valence shell = ns²

Valence shell = ns²np²

Valence electron = 2 + 2

Valence shell = ns²np⁵

Valence electron = 2 + 5

Valence shell = ns²np⁶

Valence electron = 2 + 6

Therefore, Option C. ns² np⁵ gives the correct answer to the question.

Learn more: link

ns^2 np^5

Explanation:

Now let us try to analyse our options carefully in order to make an informed decision about the correct answer.

The answer cannot be ns^2 since any atom with this configuration must be a metal in group 2. Secondly, ns^2 np^2 is an element in group 14. Again, this specie cannot have the most negative electron affinity. The atom whose outermost electron configuration is ns^2 np^6 must be a noble gas since the outermost shell possesses eight electrons. This cannot be the answer we are seeking for.

However, an outermost electron configuration of ns^2 np^5 will apply to a halogen. Halogens have a very negative electron affinity. Hence a specie with this electron configuration must have the most negative electron affinity among the options.

the food using pesticides in the future will harm you by giving you diseases like cancer or something since they have things that we should not eat in it like chemicals or pesticides. that is why organic food is more expensive because they take the time to make it right and healthy for you to eat.

explanation: