Answer: (b) Li < Be < C < O < F
The non-metallic character is the tendency of an element to accept electrons and form negative ions or anions. Chlorine and oxygen are the most electronegative elements.
- Li is on the left of in the 2nd period of the modern periodic table followed by beryllium.
- Fluorine is right next to Neon.
- Fluorine shows maximum non-metallic characters followed by Oxygen, Berrylium, carbon and Lithium.