MCQ
All the elements in a group in the periodic table have the same
- AAtomic number
- BElectronic configuration
- CAtomic weight
- ✓Number of electrons in the outermost shell or number of electrons for bonding
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
$n$ $l$ $m$
Reason : Hydrated $BaO_2$ is not available.