Question

An element 'X' has atomic no-13 a) Write its electronic configuration. b) State the group to which 'X' belongs ​

Answer 1

Answer:

electronic configuration of X is 2,8,3

group number –> 3 + 10 = 13

and since it has 3 shells so it belongs to 3rd period.

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Explanation:

the name of element is aluminium ( Al).