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What similarity do you find in their ele...

What similarity do you find in their electronic configurations of Li , Na , K ?

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All the three elements have one electron in their outermost shell, i.e., they have one valence electron .
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ZEN PUBLICATION-PERIODIC CLASSIFICATION OF ELEMENTS-ACTIVITY 5.4 (iii)
  1. What similarity do you find in their electronic configurations of Li ,...

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