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Get Answers to all your Questions
- #National Eligilibility Cum Entrance Test
- #Chemistry
- #Class 11
- #Classification of elements and periodicity in properties
- #Medical
- #National Eligibility Cum Entrance Test
What is the atomic number of the element, which is just below the element X in the periodic table? The electronic configuration of element X is 1s2 2s2 2p6 3s2 3p5.
Option: 1
36
Option: 2
49
Option: 3
35
Option: 4
34
Answers (1)
Given that electronic configuration of element X is 1s2, 2s2, 2p6, 3s2, 3p5 Hence the element below it shall have electronic configuration as 1s2, 2s2, 2p6, 3s2, 3p6, 4s2, 3d10, 4p5. Atomic number is 35.
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