Elements having their valence electrons in p-orbitals are called “p-block elements” . p- block element belong to group III-A (Zero Group). The general electronic configuration of this block varies from ns2 np1 t ns2 np6. There are 30 elements in p-block out of which 10 are metals and 20 are no metals (in which 10 are solid, 1 liquid and 9 gas). p-block elements varies in state i.e solid, liquid and gas due to which there is no regular periodic trend can be observed in period table for p-block elements.
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