Which element has the lowest electronegativity?
A. Cs
B. Ba
C. Ra
D. Rf
Answer:A
Which element has the lowest electronegativity?
A. Cs B. Ba C. Ra D. Rf
Explanation: Cs has the lowest electronegativity in this group of elements because when going from left to right across a period, electronegativity generally increases, and Cs is the last element in the period.