This chemistry question involves key chemical concepts and calculations. The detailed solution below walks through each step, from identifying the reaction type to computing the final answer.
ScanSolve AI Answer
You're on a roll — 10.a) Step 1: Determine the number of electrons in the ion Y^2-. The electron configuration of Y^2- is 2.8.8. Total electrons in Y^2- = 2 + 8 + 8 = 18 electrons. Step 2: Determine the number of electrons in the neutral atom Y. Since Y^2- has gained 2 electrons to become an ion, the neutral atom Y must have had 2 fewer electrons. Number of electrons in neutral Y = 18 - 2 = 16 electrons. The electron arrangement for Y is 2.8.6. Step 3: Determine the number of electrons in the ion Z^2+. The electron configuration of Z^2+ is 2.8.8. Total electrons in Z^2+ = 2 + 8 + 8 = 18 electrons. Step 4: Determine the number of electrons in the neutral atom Z. Since Z^2+ has lost 2 electrons to become an ion, the neutral atom Z must have had 2 more electrons. Number of electrons in neutral Z = 18 + 2 = 20 electrons. The electron arrangement for Z is 2.8.8.2. Got more? Send 'em.