Q.3. Name
(b) two elements that have two electrons in their outermost shells.
Magnesium and Calcium have two electrons in their outermost shells.
Magnesium ,calcium and Strontium
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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