WebMay 24, 2024 · In the explanation the book says that $\pu{0.06 mol}$ of electrons have flown to cathode and goes on to divide the amount of electrons at cathode by the amount … WebMay 9, 2016 · The Group number of main-group elements gives you the number of valence electrons. Metals are reducing; they tend to lose electrons and are thus oxidized to cations. Thus Group I and Group II metals, the alkali metals, and alkaline earths, commonly have +I and +II oxidation states. On the other hand, non-metals are oxidizing; they tend to gain …

How can one determine the charge of a polyatomic ion?

Web2. Oxygen forms an ion with a charge of Answer: −2. Explanation: correct me if I'm wrong−2 Since every electron has a single negative charge, the addition of two electrons results … WebFor elements in groups 6 and 7, the charge on the ion is equal to (8 minus group number). An oxygen atom gains two electrons to form an oxide ion. Ions are formed by the … flowing curved sword location

3.3: Predicting Charges of Ions - Chemistry LibreTexts

WebFeb 14, 2014 · 1 Answer. Monatomic ions are atoms that have fulfilled their octets by either gaining or losing electrons. Only metals in Groups 1, 2, and 13 follow the octet rule. They can lose one, two, or three electrons, respectively, to achieve their octets. This gives them charges of +1, +2, and +3. Web2. Oxygen forms an ion with a charge of Answer: −2. Explanation: correct me if I'm wrong−2 Since every electron has a single negative charge, the addition of two electrons results in an oxygen ion with a charge of −2 . This is true of every other element located beneath oxygen on the periodic table (the oxygen family, or the chalcogens). WebCorrect option is A) Representative elements : s-block and p-block elements are representative elements. The charge of the ion formed is related to the element's group number. For example: As Group-1 elements have +1 charge. As Group-2 elements have +2 charge. Solve any question of Equilibrium with:-. Patterns of problems. flowing dance