Qualification > Queries
ANY DOUBTS HERE!!!
cashem'up:
hey guys when determining the number of isomers a product has is there any mathemetical way to do so( excluding the sterioisomers.........that u have to figure out) but is it possible to do so for the structural isomers........i always have hunch there must be a way
Saladin:
There is using matices, but it will take you more time than if you simply find it out yourself and keep trying possibilities.
Hope that helps.
nid404:
The thing is it would be a different rule for different hydrocarbons, how many can you remember?
They won't ask you very complex stuff...the ones they give are usually easy to figure, just keep their structure in mind, and visualize the possibilities...always attempt these questions in the end, you get more time to draw and figure it out then
Sue T:
hey does any1 no wat this means:
alpha particles have discreet energy values
beta have a continuous spectrum
(it ws an answer 2 a past paper question askin bout the diff between them)
Saladin:
alpha particles act like particles, they only last for short periods of time. Beta particles, are less ionising and thus radiates more like waves.
This is a comparison between the two:
Composition and Charge:
Alpha particles are basically helium nuclei composed of two neutrons and two protons. The protons give alpha particles a positive charge. Beta particles are fast moving electrons and are negatively charged. Gamma rays are a form of energy that is part of the electromagnetic spectrum. They are neutral.
Speed and Penetration:
Alpha particles travel at about 1/20th the speed of light and can easily be blocked by paper. Beta particles travel almost at the speed of light and can be blocked by an aluminium sheet. Gamma rays travels at the speed of light and can only be blocked by a few centimetres of lead.
Deflection in a magnetic field:
Alpha particles are heavy and deflect very little in a magnetic field. Beta particles are lighter and have the greatest deflection in a magnetic field. Gamma rays are neutral and so do not undergo any deflection.
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version