which correctly summarizes the trend in electron affinity?\nit tends to be very high for group 2.\nit tends…

which correctly summarizes the trend in electron affinity?\nit tends to be very high for group 2.\nit tends to be more negative across a period.\nit tends to remain the same across periods.\nit tends to be more negative down a group.

which correctly summarizes the trend in electron affinity?\nit tends to be very high for group 2.\nit tends to be more negative across a period.\nit tends to remain the same across periods.\nit tends to be more negative down a group.

Answer

Answer:

It tends to be more negative across a period.

Brief Explanation:

As we move across a period from left - right, the effective nuclear charge increases, making it easier to add an electron and thus electron affinity becomes more negative. Group 2 elements have low electron affinities due to stable electron configurations. Electron affinity does not remain the same across periods and generally decreases (becomes less negative) down a group due to increased atomic size.