Question

how do electronegativity values change moving from left to right across the periodic table? they remain constant they increase due to rising nuclear charge they fluctuate randomly they decrease which element has the highest electronegativity value? fluorine cesium sodium chlorine

Explanation:

As you move from left to right across a period in the periodic table, the number of protons in the nucleus (nuclear charge) increases while the shielding effect remains relatively constant. This causes the out - er electrons to be more strongly attracted to the nucleus, increasing electronegativity. Fluorine has the highest electronegativity value among the elements due to its small atomic size and high nuclear charge, which allows it to attract bonding electrons very strongly.

Answer:

1. They increase due to rising nuclear charge
2. Fluorine