Chemistry - PERIODIC TABLE Question with Solution | TestHub
Electronegativity is a measure of the tendency of an atom to attract a bonding pair of electrons. For measurement of electronegativity, different types of scales were proposed. One such scale is Pauling scale which on the basis of hydrogen predicted the values of electronegativity of different elements. After that some other scales like Mulliken and Allred-Roschow scales were also proposed on the basis of ionization energy, electron affinity and size of various elements.
If the maximum value of " " is defined as 2 then the expected electronegativity of X value on pauling scale, where the valence shell electronic configuration of X is :-
Options:
Answer:
Solution:
X configuration: ns² np⁵ → halogen group (Group 17)
Maximum principal quantum number: n = 2 → period 2 → Fluorine
On Pauling scale: Fluorine has maximum EN ≈ 4
