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STD 11 - 3. Classification of elements and periodicity in properties — NEET STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceNEETSTD 11 - 3. Classification of elements and periodicity in properties4 Marks
Question
An element $'P'$ has atomic number $56.$ What will be the formula of its halide ?
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Answer

b
Element $'P ^{\prime}$ with atomic number $56$ will lose two electrons to form $P ^{2+}$ ion with $54$ electrons corresponding to the stable noble gas electronic configuration. Halogen gains one electron to form $X ^{-}$ion. One $P ^{2+}$ ion combines with two $X ^{-}$ ions to form $PX _2$.

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