“p-block of the periodic table”  

p-block elements

  In elemental science, the p-block, aka principal block, is an element block based electron configurations of the periodic table of elements, located on the right side of the table, encompassing the six right most columns of elements in groups 13 to 18 (except helium (He) within group 18), and the lower five rows of elements in periods 2 to 7.
  The p-block elements are a subset of the main-group elements.
  The p-block element includes:

• All of the metalloids
• Almost all of the reactive nonmetal element (except hydrogen (H))
• Almost all of the noble gases (except helium)

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