Question
Choose the correct sequence of the elements arranged in their increasing order of atomic numbers:
A. Pu
B. Po
C. Pm
D. Pt
E. Pa
Choose the correct answer from the options given below :
This question was previously asked in
CUET PG 2026 Agri-Business Management Question Paper (25-Mar-2026) (Shift 2)
The correct answer is
C, D, B, E, A
Ordering Elements by Atomic Number
The question requires arranging specific chemical elements in increasing order of their atomic numbers (Z). First, let's determine the atomic number for each element mentioned:
- Pu (Plutonium): $Z = 94$
- Po (Polonium): $Z = 84$
- Pm (Promethium): $Z = 61$
- Pt (Platinum): $Z = 78$
- Pa (Protactinium): $Z = 91$
Element Sequence Determination
Arranging these elements based on their atomic numbers from lowest to highest:
- Pm ($Z = 61$)
- Pt ($Z = 78$)
- Po ($Z = 84$)
- Pa ($Z = 91$)
- Pu ($Z = 94$)
Mapping to Options
Now, let's match this sequence to the letters provided in the options:
- Pm corresponds to C
- Pt corresponds to D
- Po corresponds to B
- Pa corresponds to E
- Pu corresponds to A
Therefore, the correct sequence in increasing order of atomic numbers is C, D, B, E, A.
Correct Answer Verification
Comparing this sequence (C, D, B, E, A) with the given options, it matches Option 1.
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