1.

If An element is present in 3 period and 15 group identify the element and write down its electronic configuration​

Answer»

The element with atomic number 15 BELONGING to group 15 is present in THIRD period (Period-3). ... The element is Phosphorus (P), CONFIGURATION = 2, 8, 5, Valency = 5 or 3 (8-5=3) Nature = Non-metal.



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