ahbian, is it for your children schooling purpose? Primary school?
D700 * 70-200 F/2.8 VRII * 24-120 F/4 * 50 F/1.4G * SB900
I have tried to source for them in the past, but later decided to forget about it.
I should have asked my Chem tutor where to buy it when he sort of introduce it to us when I'm still doing A levels. But that time exam is the main concern so never bother to deal with such things. Only later when I start to give chemistry tuition then I realised that this might come in useful.. but never saw it in any shops.
Anyway, maybe you can try this shop at balestiar shopping center.. it's call ace chemical or something like that.
It supplies chemicals and apparatus to schools, so maybe it will stock some of those "toys".
Actually, it's quite hard to illustrate graphite, diamond and ionic compounds with similar models right? It's quite hard to envision the sea of delocalised electrions/donation of electrons.
For those, you could consider using animations. Like maybe this one for example: here.
Just a suggestion
Last edited by ahbian; 14th October 2010 at 07:03 PM.
I agree with the limitations of extending it to electrons (transfer, delocalise etc), with be using some other methods.
The model kit quite versatile in many other concepts, like helping them differentiating among elements, compounds and mixtures etc.
I'm a chemistry major and the lecturers teaching us like to use this freeware: molsym
this is the link for it
just click on launch 3D molsym
You can check with the bookshop at nus science faculty
Thanks for all the helpful suggestions. I finally got the molecular sets from NUS Science Faculty, no ionic or diamond structure for sale though.
Just information for those who might need to buy such stuff in the future.