Teaching BPSC बिहार प्राथमिक (1 to 5) शिक्षक भर्ती 4.0 Mock Test General Science Chemistry Classification of Elements and Periodicity in Properties
Which of the following is the most electronegative element in the periodic table?
1
N
2
Cl
3
F
4
More than one of the above
5
None of the above