Qualification > Queries
what are the grade limits for AS physics, chemistry and bio
ksitna:
--- Quote from: Tammy on January 13, 2010, 04:23:32 pm ---Peeps I got a couple of chemistry questions:
Why is it necessary to ionize atoms before acceleration?
and
Name the device used to ionize atoms in the mass spectrometer.
--- End quote ---
hoowww the on earth......
ksitna:
can someone please explain redox reactions for me please :D
IBO:
--- Quote from: Tammy on January 13, 2010, 04:23:32 pm ---Peeps I got a couple of chemistry questions:
Why is it necessary to ionize atoms before acceleration?
and
Name the device used to ionize atoms in the mass spectrometer.
--- End quote ---
-you ionize atoms inorder to be able to deflect them and accelerate them...........if they're not in the form of ions you cnt accelerate them because there's no charge
-i dnt think they'll ask you to mention a device...........the Q will come in a way where they'll ask you to say how the atoms are ionized...........................they're ionized by bombarding them with a beam of high energy electrons which will knock off an electron forming an ion
Saladin:
The grade boundaries change from year to year.
Saladin:
Here u go
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