P-Block Elements

Group 1, 2, and 3 elements

Group 15, 16, 17, and 18 elements (correct)

Group 19, 20, and 21 elements

Group 4, 5, and 6 elements

Their ability to react with elements of the d-block

Their ability to react with elements of the f-block

Their diversity in chemistry (correct)

Their ability to react with elements of the s-block

Sulfur and phosphorus (correct)

Carbon and silicon

Hydrogen and helium

Oxygen and nitrogen

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