In the previous blogpost, i have introduced to you the Periodic Table which is a table that Chemists used to help them organise information. The Periodic Table is useful to Chemists because it can be used to predict the properties of an element based on its position in the Table.
In the YouTube video below, i will discuss on the Group VII Elements (commonly known as the Halogens) in terms of their Physical & Chemical Properties. I will also highlight to you what are the possible questions that examiners like to ask in Chemistry examinations.
Direct link to video: http://youtu.be/jChTEHAvrBg
Note: Colour of Iodine Solids is commonly stated to be Purplish-Black (in the video i mentioned it is Black in colour)
Hope you learned something important to UP your Chemistry grades and interests. Do try out the question that was posted at the end of the video. You can leave your comments/solutions in the Comments Section below. Adding a balanced chemical equation for that Halogen Displacement Reaction would show that you are cool!
If you think the concepts discussed are useful to your friends, feel free to forward this blog post to them.
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javierkeow says
I think the answer is
yes. the bromine will displace the astatine because it is more reactive than astatine.
Correct me if i’m wrong, Mr Chua.
Adeel Tariq says
sir you are doing a wonderfull job i have learnt alot from your videos and i am sure that those topics in which i am week i will undertand by watching your videos as i have already understood alot from u …. thanku
🙂
Emilia Figueroa says
?Which molecule is more polar: NH3 , CH3Cl , CH4 , HCN
How can i calculate it?