Dr T Chemistry Blog

Dr Taylor's Chemistry blog

A question of bonding

Why is he right to be afraid of the water?  

Click for a clue

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21/09/2010 Posted by | 5CH41H (2011-2012) | Leave a comment

Hypnosis

Last night a hypnotist convinced me I was a dull grey malleable metal with an atomic number of 82.

I’m easily lead.

21/09/2010 Posted by | Uncategorized | Leave a comment

Ionic, Covalent and Polar Covalent Bonding

This animation looks at the differences between the three. When they talk about an octet of electrons, they mean a full outer shell.

21/09/2010 Posted by | 5CH41H (2011-2012) | Leave a comment

Confused about Ionic, Covalent and Polar Bonds?

The “E.N.D.” they refer to is electronegativity difference. If the difference in elcetronegativity is very small or zero, then you have a pure covalent bond. As the difference in elctrongativity increases, the bond gets more polar (e.g. HCl, ΔE.N. = 0.9) until you end up with pure ionic bonding (e.g. NaCl, ΔE.N. = 2.1).

21/09/2010 Posted by | 5CH41H (2011-2012) | Leave a comment