Why is a filled valence shell often called an octet

Why is a filled valence shell often called an octet -...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Why is a filled valence shell often called an octet? With the exception of He, which has 2 valence electrons, the closed shell/noble gas configuration has eight electrons in its valence shell. Problem : Which atom has a partial negative charge in a B-H bond? Because H is more electronegative than B, H has a partial negative charge. Problem : Which bond should be longer, F-F or Cl-Cl?
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Because Cl is in period 3 and F is in period 2, the Cl atom is larger than the F atom. This means that the Cl-Cl bond should be larger. Problem : Which bond should be stronger, H-F or H-Cl? Because F is both smaller and more electronegative than Cl, it should have a shorter and stronger bond with H than has Cl....
View Full Document

This note was uploaded on 11/14/2011 for the course CHEM ch 101 taught by Professor - during the Fall '10 term at Montgomery.

Ask a homework question - tutors are online