Q: Explain why the first ionization energy of lithium is less than that of berylium, but the second ionization energy of berylium is greater than that of lithium

If you could explainthe whole concept clearly it would be better

Thanks in Advance

Mridul

Dear Mridul,

To remove an additional electron from lithium would be removing an electron from a full energy sub-level whereas removing the second electron from beryllium would leave a more stable full outer electron level.

Best Of Luck...!!!!

Cracking IIT just got more exciting,It’s not just all about getting assistance from IITians, alongside Target Achievement and Rewards play an important role. ASKIITIANS has it all for you, wherein you get assistance only from IITians for your preparation and winexciting gifts by answering queries in the discussion forums. Reward points 5 + 15 for all those who upload their pic and download the ASKIITIANS Toolbar, just a simple click here to download the toolbar….

So start the brain storming…. become a leader with Elite Expert League ASKIITIANS

Thanks

Aman Bansal

Askiitian Expert