Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
NEET
Exam
NEET
Subject
Chemistry
Chapter
Classification of Elements and Periodicity in Properties

NEET · Chemistry · Classification of Elements and Periodicity in Properties

Why do noble gases have large positive electron gain enthalpies?

Why do noble gases have large positive electron gain enthalpies?

Options

  1. AThey have small atomic sizes.
  2. BThey have low electron-electron repulsion.
  3. CThey have stable noble gas electronic configurations.
  4. DThey have to enter the next higher principal quantum level.

Correct answer

D. They have to enter the next higher principal quantum level.

Step-by-step solution

Noble gases have large positive electron gain enthalpies because the added electron has to enter the next higher principal quantum level, leading to a very unstable electronic configuration.
Practice Classification of Elements and Periodicity in Properties on Quantrex Academy →

More from Classification of Elements and Periodicity in Properties

Match the following List I List II A. Technetium I. Non-metal B. Fluorine II. Transition… MHT CET Medical 2026Which of the following properties increases from fluorine to iodine in group? MHT CET Medical 2026Identify the metalloid element from the following. MHT CET Medical 2026Which among the following elements does NOT exhibit -2 oxidation state? MHT CET Medical 2026Which has the maximum electropositive character? MHT CET Medical 2026The hydride with lowest acid strength among the following is MHT CET Medical 2026Among the following options, the correct trend in the electron gain enthalpy is NEET 2026Given below are two statements : One is labelled as Assertion A and the other is labelled… NEET 2026 Full Classification of Elements and Periodicity in Properties list All NEET PYQs