January 17, 2024
I/GCSE Chemistry Question Analysis Topic: Chemistry - Short Questions
Exam Questions:
1) Write the IUPAC name of the following compound.
2) Aluminium crystallizes in an FCC structure. Atomic radius of the metal is 125 pm. What is the length of the side of the unit cell of the metal?
Answers:
For I/GCSE Chemistry, you should know:
1) The IUPAC name is: 2,2-Dimethyl-3-chlorobutane.
2) For a face-centered cubic unit cell structure (FCC), let's define the following variables:
a: edge of the cube
r: radius of atom
We're given that r = 125 pm.
So, putting that into a = 2√2r, we get:
2 x 1.414 x 125 pm = approx. 354 pm
Work hard for your I/GCSE Chemistry examination!
End of analysis. Great!