P-1 Periodic Classification of Element — Science STD 10 — Question

1. The groups IA (1) and IIA (2) elements together with hydrogen constitute the s-block.
2. They have one or two electrons in the outermost shell.
3. The elements of the s-block, except hydrogen, are all metals.

p-block elements :

1. The group III A (13) – VII A (17) and the zero group (18) elements constitute the p-block.
2. They have three to eight electrons in the outermost shell.
3. The elements of the p-block include a few metals, all metalloids and all nonmetals.