Chemistry, asked by zarif48, 8 months ago

D one only pls answer

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Answered by AbdulHafeezAhmed

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Electronic configuration of Na = 1s² 2s² 2p⁶ 3s¹

Electronic configuration of Mg = 1s² 2s² 2p⁶ 3s²

Since magnesium has a filled s- orbital and size of magnesium atom is smaller than sodium atom, ionisation energy of Mg is greater than Na

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