Electronegativity and electron affinity?

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SUMMARY

The discussion centers on the comparative electronegativity and electron affinity of fluorine and chlorine. Fluorine exhibits a higher electronegativity than chlorine due to its smaller atomic radius and greater effective nuclear charge, allowing it to attract bonding electrons more effectively. However, fluorine's electron affinity is lower than that of chlorine because its high ionization energy makes the addition of an electron less favorable, despite its strong attraction to bonding pairs.

PREREQUISITES
  • Understanding of electronegativity and its measurement
  • Knowledge of electron affinity and its implications
  • Familiarity with ionization energy concepts
  • Basic principles of atomic structure and periodic trends
NEXT STEPS
  • Research the concept of effective nuclear charge in atomic theory
  • Explore the periodic trends in electronegativity and electron affinity
  • Study the relationship between ionization energy and electron affinity
  • Examine the atomic structure of halogens in detail
USEFUL FOR

Chemistry students, educators, and professionals interested in atomic theory, periodic trends, and chemical bonding.

goggles31
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Why is the electronegativity of fluorine higher than chlorine but not electron affinity? How is it possible that it has a stronger attraction towards a bonding pair of electrons than when a new electron is added to the atom?
 
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Because ionisation energy is much higher for fluorine than for chlorine?
 
I came.across a headline and read some of the article, so I was curious. Scientists discover that gold is a 'reactive metal' by accidentally creating a new material in the lab https://www.earth.com/news/discovery-that-gold-is-reactive-metal-by-creating-gold-hydride-in-lab-experiment/ From SLAC - A SLAC team unexpectedly formed gold hydride in an experiment that could pave the way for studying materials under extreme conditions like those found inside certain planets and stars undergoing...

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