The Td point group has 24 elements and 5 classes. Given that it has two 3 - dimensional irreducible… · ABC26PH0462
Subject: Physical Chemistry · Chapter: Group Theory · Topic: Character Tables · Exam: GATE 2005-2021 · Marks: 2 · Difficulty: Medium
The Td point group has 24 elements and 5 classes. Given that it has two 3 - dimensional irreducible representa tion, the number of one dimensional irreducible representation is:
(a)1
(b)2
(c)0
(d)3
Answer
Answer: B ✓ checked by 4AB · confidence high
Explanation
Σd² = 24 with five classes: two T (9 each) + one E (4) leaves 2 = 1² + 1², i.e. two one-dimensional irreps (b).