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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > Two elements X and Y have following electronic configuration X 1s 2 ,2s 2 ,2p 6 ;3s 2 ,3p 6 ;4s 2 Y 1s 2 ,2s 2 ,2p 6 ;3s 2 ,3p 5 The expected compound formed by combination of X and Y will be expressed as

Two elements X and Y have following electronic configuration X 1s 2 ,2s 2 ,2p 6 ;3s 2 ,3p 6 ;4s 2 Y 1s 2 ,2s 2 ,2p 6 ;3s 2 ,3p 5 The expected compound formed by combination of X and Y will be expressed as

2p 6 ;3s 2 2s 2 3p 5 The expected compound formed by combination of X and Y will be expressed as 3p 6 ;4s 2 Y 1s 2 Two elements X and Y have following electronic configuration X 1s 2