Lecture 21 - Electron Configuration from the Periodic Table...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Electron Configuration from the Periodic Table P = [Ne]3 s 2 3 p 3 P has 5 valence electrons 3 p 3 P Ne 1 2 3 4 5 6 7 1A 2A 3A 4A 5A 6A 7A 8A 3 s 2 quantum mechanical calculations show that 8 valence electrons should result in a very unreactive atom, an atom that is very stable – and the noble gases, that have 8 valence electrons are all very stable and unreactive
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Penetrating and Shielding the radial distribution function shows that the 2 s orbital penetrates more deeply into the 1 s orbital than does the 2 p the weaker penetration of the 2 p sublevel means that electrons in the 2 p sublevel experience more repulsive force, they are more shielded from the attractive force of the nucleus the deeper penetration of the 2 s electrons means electrons in the 2 s sublevel experience a greater attractive force to the nucleus and are not shielded as effectively the result is that the electrons in the 2 s sublevel are lower in energy than the electrons in the 2 p
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 16

Lecture 21 - Electron Configuration from the Periodic Table...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online