Be2+ is isoelectronic with which of the following ions?
1. H+
2. Li+
3. Na+
4. Mg2+

Subtopic:  Electronic Configuration |
 91%
From NCERT
AIPMT - 2014
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Amongst the elements with the following electronic configurations, which one of them may have the highest ionisation energy?

1. [Ne] 3s2 3p3

2. [Ne] 3s2 3p2

3. [Ar] 3d10  4s2 4p3

4. [Ne] 3s2 3p1

Subtopic:  Ionization Energy (IE) | Electronic Configuration |
 74%
From NCERT
AIPMT - 2009
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Among the following, the most characteristic oxidation states for lead and tin are, respectively:

1. +4, +2

2. +2, +4

3. +4, +4

4. +2, +2

Subtopic:  Electronic Configuration |
 62%
From NCERT
AIPMT - 2007
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh