What is the correct order of elements according to their valence shell electrons?

Correct option is A

The Correct Answer is (a) F > O > C > Li
Explanation: The valence shell electrons of an element determine its chemical reactivity and position in the periodic table. The correct order of elements according to their number of valence electrons is:
· Fluorine (F): 7 valence electrons (Group 17)
· Oxygen (O): 6 valence electrons (Group 16)
· Carbon (C): 4 valence electrons (Group 14)
· Lithium (Li): 1 valence electron (Group 1)
Key Points:
· Elements in higher groups have more valence electrons.
· Valence electrons are determined by the group number in the periodic table for representative elements.