8.1 Write down the electronic configuration of:
Atomic number of promethium is 61 and the nearest noble gas is xenon() So, atomic configuration of
‘Stop defending your so-called flawless OSM’: Class 12 students slam CBSE over blurred answer sheets
'CBSE failed us, again!': Board faces backlash as Class 12 re-evaluation portal remains inaccessible
CBSE Class 12 re-evaluation portal faces technical glitch, services to resume by 2 pm
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