Mention the symbols of first,second and third orbit of an atom and how many electrons can be accommodated in each of them.
GSEB - Class 9 Chapter - 5.Structure of Atom Page 65
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first orbit :
name : k
electrons : 2
second orbit:
name : l
electrons : 8
third orbit:
name : m
electrons : 18
name : k
electrons : 2
second orbit:
name : l
electrons : 8
third orbit:
name : m
electrons : 18
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