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periodic classification of elements — Science STD 10 — Question

Gujarat BoardEnglish MediumSTD 10Scienceperiodic classification of elements1 Mark
Question
Write down the electronic configuration of the first three elements of group $1.$
✓

Answer

  • The electronic configuration of the first three elements are as follows :
Element $H$ Li Na
Shell $K$ $K,L$ $K,L,M$
Electronic configuration $1$ $2,1$ $2,8,1$

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