Question 15 2 pts At We often organize chemical reactivity patterns by group. Ho

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Question 15 2 pts At We often organize chemical reactivity patterns by group. However, the first elements in each group (e.g. lithium in Group 1, fluorine in group 17) are not the most representative of the behavior of the group elements as a whole. Why is this? (Check ALL that apply.) Se The first element in each group has a low electronegativity. O The first element in each group has an enhanced ability to form pi bonds. The first element in each group is smaller than what you would predict by extrapolating from the group trend. The valence electrons of the first element in each group experience an exceptionally small effective nuclear charge. The first element of each group can only take on +1 and/or +2 oxidation states. The selectrons of the first element in each group are not very reactive.

Explanation / Answer

This is because of

The first element in each group is smaller than what you could predict by extrapolating from the group trend.

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