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Electron affinity, Bes is the change in energy that occurs when an electron is added to a neutral isolated atom. This can be represented by the following equation: X(g) + X (g) Most electron affinity values are negative because energy is usually released when a s an electron. Avalues become a with increasing neutral atom to accare more neity of the resulting anion. train o accept an electron and increasing s tendency of the a Kshows a periodic trend that is related to electron configuration. Elements with less than an octet and with high effective nuclear charge (Zee tend to have large negative Lea values. Elements with filed valence shells or subshells and low Zefitend to have Pea values near zero. ▾ Part A 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, ▸ View Available Hint(s) 0 42 048²4 Submit Part B Arrange the following elements from greatest to least tendency to accept an electron. Rank from greatest to least tendency to accept an electron. To rank items as equivalent, overlap them. ▸ View Available Hint(s) Reset Help Greatest tendency Br Submit Previous Answers x Incorrect; Try Again; One attempt remaining Your answer shows the general trend, but there are some exceptions. For example, the tendency to gain an electron is lower than expected if a stable electron configuration is lost. Ca Least tendency