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Which pair of atomic numbers represents s-block elements?
Options
(a) 3,12
(b) 6,12
(c) 7,15
(d) 9,17
Correct Answer:
3,12
Explanation:
Last electron goes to s-subshell.
Related Questions: - IF the bond energies of H – H , Br – Br and H – Br are 433 , 192 and 364 kJ mol⁻¹
- The covalent bond length is the shortest in which one of the following bonds
- Which one of the following ions has electronic configuration[Ar] 3d⁶?
- The half-life of a reaction is inversely proportional to the square of the
- Syngas is a mixture of
Question Type: Memory
(964)
Difficulty Level: Easy
(1008)
Topics: Classification of Elements and Periodicity
(94)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- IF the bond energies of H – H , Br – Br and H – Br are 433 , 192 and 364 kJ mol⁻¹
- The covalent bond length is the shortest in which one of the following bonds
- Which one of the following ions has electronic configuration[Ar] 3d⁶?
- The half-life of a reaction is inversely proportional to the square of the
- Syngas is a mixture of
Question Type: Memory (964)
Difficulty Level: Easy (1008)
Topics: Classification of Elements and Periodicity (94)
Subject: Chemistry (2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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