Chapter : 1. Metals & Non Metals
Important Terms And Concepts
27. Reason for Metals for Losing Electrons : In the electronic configuration of elements, you have observed that noble gases have 8 electrons in their outermost shell and they are quite stable except helium which has two valence electrons. It is also quite stable.
It means all metals will try to lose electrons to acquire nearest noble gas configuration, e.g.,
28. Reason for Non-metals for Gaining Electrons : Non-metals can gain electrons to form negative ions so as to acquire stable noble gas configuration, i.e., 8 electrons in its outermost orbit.
Non-metals gain electrons to complete their octet.
29. Octet : A stable group of eight electrons in the outermost orbit of the atom.
It means all metals will try to lose electrons to acquire nearest noble gas configuration, e.g.,
28. Reason for Non-metals for Gaining Electrons : Non-metals can gain electrons to form negative ions so as to acquire stable noble gas configuration, i.e., 8 electrons in its outermost orbit.
Non-metals gain electrons to complete their octet.
29. Octet : A stable group of eight electrons in the outermost orbit of the atom.
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