1.

Order of ionization enthlphy in second period of the following is true.

Answer»

`Li LT B lt Be lt N lt C `
`Li lt B lt Be lt C lt C`
`Li lt Be lt B lt N lt C`
`Li lt Be lt B lt C lt N `

SOLUTION :The correct ORDER of ionisation ENTHALPY for second periode is
`Li lt B lt Be lt C lt O lt N lt F lt NE`


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