Showing posts with label Bonding. Show all posts
Showing posts with label Bonding. Show all posts

Thursday, 3 January 2013

C2 1. Structure and Bonding (Part Two) Ionic bonding

Okay I apologise if you don't like the fonts etc. on the post before, I thought it would be fun but i'll tone it down a bit but I assure you it will still look fun! 

Ionic Bonding
Ionic compounds are held together by strong forces between oppositely charged ions, this is called Ionic Bonding.Ionic Bonding holds together oppositely charged ions in Giant Structures. 



Above is an example of Ionic bonding Between a Sodium atom and a Chloride atom. As you can see they posses opposite charges. Sodium positive and the Chloride atom negative.
Then on the right we can see part of the Giant Structure or we can say part of the Giant Ionic Lattice. Throughout the Lattice or Structure strong forces of attraction act between the atoms.
Referring to the picture again on the left side there are diagrams of the atoms and below the positive or negative charge of its ions. Diagrams like these might be familiar to you! We can draw these diagrams using dot and crosses to represent atoms and ions like below:



It's also useful as we can see the gain, loss or sharing of the ions. As above shows that Sodium has lost one electron to get a full outer shell and Chloride has gained an electron to get a full outer shell. 
I also recommend quickly checking out this BBC bitesize page http://www.bbc.co.uk/schools/gcsebitesize/science/add_aqa/bonding/ionic_bondingrev1.shtml which has all about Ionic Bonding in more depth and etc...




C2 1. Structure and Bonding (Part One)

I want this to be at the least, a tad bit interesting..

1. Structure and Bonding

 Structure and bonding consists of 5 different Parts. Part One in my textbook (Nelson Thornes AQA  New GCSE published in 2011 - I am following the order of the content in my textbook hopefully this is similar to yours) is Chemical Bonding. So.. Chemical Bonding, let's get started!

Okay so firstly let's take it slow..

Covalent Bonding - we need to know that when atoms of non-metallic elements join together by sharing electrons it is called COVALENT BONDING!!

We need to understand that Elements react to form compounds by GAINING or LOSING electrons, or by SHARING electrons. In order to get full outer shells = 2.8.8.8.8.... Elements which already have full outer shells such as the NOBLE GASES therefore do not react with other elements as it does not need to gain, lose or share electrons in order to get a full outer shell. Is that clear? If not ask for help in the comments and I will answer A.S.A.P!

MORE COMING UP ON THIS TOPIC.. JUST WANTED TO UPLOAD THIS ONE FIRST :) LOOK UP C2 1. Structure and Bonding (Part 2)