which element will be more reactive and why ⟩the element whose atomic number is 10 or the one whose atomic number is 11
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Element with atomic number 10 neon, while the one with atomic number 11 is sodium. Neon is a unreactive noble gas as it has completely filled outermost shell (electronic configuration 2, 8). Sodium will be very reactive as it has incomplete outermost shell (electronic configuration 2, 8, 1).
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ans) 10
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