Q.3. Which element has
(a) two shells, both of which are completely filled with electrons?
The element which has two shells, which are both completely filled with electrons is,
Neon with electronic configuration .
CBSE Class 10 board exams twice a year ‘relief’ or ‘burden’? Parents, schools share mixed views
CBSE Class 10 exams twice a year from 2026; 64.4% students in favor, second attempt optional
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