Question

The elements of one period are given below in order from left to right:- $Li,Be,B,C,O,F,Ne$
Place the elements $F,Be$ and $N$ in order of increasing electro-negativity.

• A. $Be,N,F$
• B. $F,N,Be$
• C. $N,F,Be$
• D. $F,Be,N$

Answer 1

The correct option is A $Be,N,F$

left side coloumns of periodic table have metals while right coloumns have non-metals so in general as we move from left to right, electronegativity of elements increases.
So order is $Be,N,F$.