alleryStart learning →Element X with electronic configuration 2,8,3 belongs to:
AGroup 13, Period 1
BGroup 3, Period 13
CGroup 11, Period 3
DGroup 13, Period 3
Answer & Solution
Correct answer: D. Group 13, Period 3
1. Three shells filled means period 3.
2. Three valence electrons place it in Group 13.
3. The element is aluminium (Z = 13).
4. So X belongs to Group 13, period 3.
_Source: Selina Concise Chemistry ICSE Class 9, Ch 5 'The Periodic Table'_
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