1.

Consider the statement: The element with 1s2 configuration belongs to the p-block.’ 1. Identify the element.2. Do you agree with this statement? 3. Justify.

Answer»

1. Helium 

2. Yes 

3. Strictly, helium belongs to the s-block but its positioning in the p-block along with other group 18 elements is justified because it has a completely filled valence shell (1s²) and as a result, exhibits characteristic of other noble gases.



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