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NEET UG CHEMISTRY MCQ: CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES
1
Medium
1 of 1
Application
+4 | -1
Among the following, pair of elements belonging to same
period is
period is
View answer and explanation
Correct option: C
Z = 55 and Z = 77
Option C (Z = 55 and Z = 77) is correct because both elements with atomic numbers 55 (Cesium) and 77 (Iridium) belong to the 6th period.
More Questions from CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES
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The elements with zero electron affinity are
S-I: paramagnetic.
S-II: All the orbitals present in ion are doubly occupied. Which of the following is the most electropositive element? The law of Octaves is not applicable to: Assertion (A): Mendeleev's arranged elements in horizontal rows and vertical columns.
Reason (R): Mendeleev's ignored the order of atomic weight thinking that the atomic measurements might be incorrect. Which of the following electronic configuration does not belong to same block as others?
S-II: All the orbitals present in ion are doubly occupied. Which of the following is the most electropositive element? The law of Octaves is not applicable to: Assertion (A): Mendeleev's arranged elements in horizontal rows and vertical columns.
Reason (R): Mendeleev's ignored the order of atomic weight thinking that the atomic measurements might be incorrect. Which of the following electronic configuration does not belong to same block as others?