March 28, 2024, 05:52:33 AM
Forum Rules: Read This Before Posting


Topic: Periodic Table Trends  (Read 3695 times)

0 Members and 1 Guest are viewing this topic.

Offline Krystalsnow2013

  • New Member
  • **
  • Posts: 3
  • Mole Snacks: +0/-0
Periodic Table Trends
« on: February 20, 2023, 11:44:28 PM »
1. How does understanding electron configuration help with understanding the trends in IONIZATION ENERGY (especially jagged appearance and drop for group 13)?

2. What is the difference between a POSITIVE and NEGATIVE electron affinity value?

3. How does understanding electron configuration help with understanding the trends in ELECTRON AFFINITY (especially how Groups 2 and 8 have positive values)?

Offline Borek

  • Mr. pH
  • Administrator
  • Deity Member
  • *
  • Posts: 27637
  • Mole Snacks: +1799/-410
  • Gender: Male
  • I am known to be occasionally wrong.
    • Chembuddy
Re: Periodic Table Trends
« Reply #1 on: February 21, 2023, 09:44:55 AM »
We won't do homework for you. Please read the forum rules, you have to show you efforts at answering the question to receive help.
ChemBuddy chemical calculators - stoichiometry, pH, concentration, buffer preparation, titrations.info

Offline Vidya

  • Full Member
  • ****
  • Posts: 839
  • Mole Snacks: +46/-62
  • Gender: Female
  • Online Chemistry and Organic Chemistry tutor
    • Online Chemistry Tutor
Re: Periodic Table Trends
« Reply #2 on: May 15, 2023, 01:29:11 AM »
Quote
electron configuration help with understanding the trends in IONIZATION ENERGY
Check the stability of electron configuration and it is difficult to remove electron from stable configuration.
Quote
difference between a POSITIVE and NEGATIVE electron affinity value
Again it is based on stability of electron configuration so like noble gases have positive electron gain enthalpy.
Quote
electron configuration help with understanding the trends in ELECTRON AFFINITY (
Again check stability of electron conjurations and from there you can understand the relation in electron affinity and ionization energy.

I hope you know that exactly half filled and fully filled subshells are more stable than partially filled subshells.
Fully filled shells like noble gases are very stable so they show very high IE and positive EA.
2md group is fully filled ns2 (subshell) and 15 group is exactly half filled p subshell (ns2np3).

Sponsored Links