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Ch.6 - Ionic Compounds: Periodic Trends and Bonding Theory

Chapter 6, Problem 78d

Element X reacts with element Y to give a product containing X3+ ions and Y2-ions. (d) In what groups of the periodic table are elements X and Y likely to be found?

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Hello. In this primary asked if the reaction of A. And B resulted in A two plus signs and the minus signs A and B come from what groups of the periodic table. So this began by quickly sketching a picture of the periodic table. And so within the middle of the periodic table we have our transition metals on either side of those we have what are called the main group or the representative elements. And these have the A numbering system. So one A two A skipping over the transition metals and three A. Through eight A. And the number of valence electrons is equal to the group number. So those in Group one A. Have one to A. Have two and so on Until we get to group 8, 8 and they all have eight with the exception of helium which has two. And so when we form ions, the medals will lose their valence electrons to become like a noble gas. So those in Group one A. Will form ions with A one plus charge group to A two plus and medals in group three A three plus non metals are also trying to be like a noble gas and they do this by gaining electrons. So those in group seven A will gain one for my eyes with the minus charge. Group 6824 minus two minus charge and group five will gain 3 to miles with the three minus charge. So these add up to eight. So A and B. Then based on their charges A. Then which has a charge of two plus will come from Group two. A. And B, which forms an iron with A minus charge, will come from Group seven A. And this corresponds then to answer C. Thanks for watching. Hope. This helped.