Answer to Question #84422 in Inorganic Chemistry for anuj kumar

Question #84422
Explain the variation in ionization energy across the elements of period 2 in the periodic table.
1
Expert's answer
2019-01-23T04:49:51-0500

The first ionization energy is the energy required to remove one mole of the most loosely held electrons from one mole of gaseous atoms to produce 1 mole of gaseous ions each with a charge of 1+.

The general trend is for ionization energies to increase across a period.

In the whole of period 2, the outer electrons are in 2-level orbitals 2s or 2p. These are all the same sort of distances from the nucleous, and are screened by the same 1s2 electrons.

The major difference is the increasing number of protons in the nucleus as you go from lithium to neon. That causes greater attraction between the nucleus and the electrons and so increases the ionization energies.

Need a fast expert's response?

Submit order

and get a quick answer at the best price

for any assignment or question with DETAILED EXPLANATIONS!

Comments

No comments. Be the first!

Leave a comment

LATEST TUTORIALS
New on Blog
APPROVED BY CLIENTS