NEET Chemistry Periodic Table MCQ Question
Which of the following elements has the most negative electron gain enthalpy, given that elements with atomic numbers up to 118 have been discovered?
Chlorine (Cl)
Oxygen (O)
Nitrogen (N)
Fluorine (F)
Correct Answer
Detailed Explanation
According to the NCERT context, elements toward the upper right of the periodic table preceding noble gases have large negative electron gain enthalpies. Chlorine has a more negative electron gain enthalpy than fluorine due to lesser electron-electron repulsion in the larger 3p orbital.
Found an issue with this question?
Related Questions
More from Periodic Table
More from
Match Column-I with Column-II. Column-I Column-II (a) Cation (i) Larger than parent atom (b) Anion (ii) Smaller than parent atom (c) ...
How many elements are there in the seventh period of the periodic table, considering the filling of the 7s, 5f, 6d, and 7p orbitals?
Assertion (A): Ionization energy generally increases across a period from left to right. | Reason (R): The effective nuclear charge increases across a...