The grid below represents periodic table. Study it and answer the questions that follow. The letters do not represent the actual symbols of the elements.

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28. The grid below represents periodic table. Study it and answer the questions that follow. The letters do not represent the actual symbols of the elements. a) Indicate on the grid the position of an element represented by letter N whose electronic configuration of a divalent cation is 2:8:8. A divalent cation with electronic configuration 2:8:8 means the neutral atom has 2+8+8+2 = 20 electrons. This element is Calcium (Ca), which is in Period 4, Group 2. In the given grid, G and I are in Group 2. I is in Period 3. Therefore, N would be in Period 4, directly below I. The