1
JEE Main 2022 (Online) 29th June Morning Shift
MCQ (Single Correct Answer)
+4
-1
English
Hindi
The electronic configuration of Pt (atomic number 78) is:
2
JEE Main 2022 (Online) 28th June Morning Shift
MCQ (Single Correct Answer)
+4
-1
English
Hindi
Element "E" belongs to the period 4 and group 16 of the periodic table. The valence shell electron configuration of the element, which is just above "E" in the group is
3
JEE Main 2022 (Online) 27th June Evening Shift
MCQ (Single Correct Answer)
+4
-1
English
Hindi
The correct order of increasing ionic radii is
4
JEE Main 2022 (Online) 27th June Morning Shift
MCQ (Single Correct Answer)
+4
-1
English
Hindi
Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) : The ionic radii of O2$$-$$ and Mg2+ are same.
Reason (R) : Both O2$$-$$ and Mg2+ are isoelectronic species.
In the light of the above statements, choose the correct answer from the options given below.
Questions Asked from Periodic Table & Periodicity (MCQ (Single Correct Answer))
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