Question

an atom having stable electronic configuration​

Answer 1

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A stable electron configuration for the representative or main group elements is a noble gas configuration. ... The noble gases are in Group 18 (VIIIA). Atoms of the representative elements achieve a noble gas configuration by gaining or losing electrons and becoming ions, or by sharing electrons.

Answer 2

An atom having a stable electronic configuration is called a Noble Gas

• Noble gases are atoms which have stable configurations as their valence shell is complete and they have two or eight electrons in their valence shell so they do not gain, lose or share electrons. The other elements in the periodic table try to gain, lose, or share electrons for achieving a noble gas configuration.

• Noble Gas are the seven chemical elements that compose Group 18 of the periodic table. The elements are Helium (He), Neon (Ne), Argon (Ar), Krypton (Kr), Xenon (Xe), Radon (Rn), and Oganesson (Og). The features of noble gases are colourless, odourless, tasteless and nonflammable gases.

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