For which element would XH3 be a stable species : — p Block Elements Chemistry Question

💡 Solution & Explanation

Step 1: Evaluate the common valency and stable hydride formulas for the given elements based on their periodic groups. Step 2: Carbon (Group 14) forms stable CH4; Silicon (Group 14) forms SiH4; Sulfur (Group 16) forms H2S. Phosphorus (Group 15) has a valence shell of s2 p3 and forms stable PH3 (phosphine). Step 3: Thus, XH3 is a stable hydride species for Phosphorus (P), matching option (c).