W ni elementi yenye nambari atomi 13. Eleza mpangilio wa elektroni wa ioni imara zaidi ya W (ii) fomula ya oksidi ya elementi W (iii) Kwa nini mionzi ya ioni ya elementi W ni kubwa kuliko mionzi ya at

Haya hapa majibu ya maswali yako: 1. i) Electronic configuration of the most stable ion of W: Element W has an atomic number 13, which is Aluminum (Al). Electronic configuration of Al: 2.8.3. To achieve stability, Al loses 3 electrons to form an ion with a charge of +3. Electronic configuration of W^3+ (or Al^3+): 2.8. 2.8 ii) Formula of the oxide of the element W: Element W forms W^3+ ions. Oxygen forms O^2- ions. To balance the charges, two W^3+ ions combine with three O^2- ions. W_2O_3 2. a) Would these form part of a metallic or a non-metallic group? Explain. These elements would form part of a non-metallic group. Explanation: For all the elements (W, X, Y, Z), the ionic radius is larger than the atomic radius. This occurs when an atom gains electrons to form a negatively charged ion (anion). Non-metals typically gain electrons to achieve a stable electron configuration. b) Suggest an element in the table above likely to be the most reactive. Explain. The most reactive element is likely X. Explanation: For non-metals, reactivity generally increases with a smaller atomic radius because the nucleus has a stronger attraction for incoming electrons, making it easier to gain electrons. Element X has the smallest atomic radius (0.072 nm) among the given elements, indicating a stronger nuclear pull on valence electrons. 3. a) Explain why the metals magnesium and aluminium are good conductors of electricity.