NEET Chemistry The Solid State Questions Solved

NEET - 2012

A metal cryszallizes with a face-centered cubic lattice. The edge of the unit cell is 408 pm.
The diameter of the metal atom is
(a) 288 pm
(b) 408 pm
(c) 144 pm
(d) 204 pm

Concept Videos :-

#0 | Introduction to Solid State
#1 | Introduction to Unit Cell
#2 | Types of Unit Cell
#3 | Simple Cubic Unit Cell: Rank (z)
#6 | Body Centred Cubic (BCC) Unit Cell
#8 | Face Centred Cubic (FCC) Unit Cell
#12 | Hexagonal Close Packing Arrangement
#13 | Cubic Close Packing Arrangement
#14 | Layer Arrangement in FCC
#25 | Ionic Structure of Rock Salt

Concept Questions :-

Introduction and Type of Crystal System

For fcc lattice,

4r= √2a

r= √2 a = a   
      4       2√2

= 408  
   2√2

=144pm

diameter d=2r=2 x 144pm=288pm

Difficulty Level:

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