alleryWhich pair shows the diagonal relationship in the periodic table?
ALi and Mg
BNa and K
CO and S
DF and Cl
Answer & Solution
Correct answer: A. Li and Mg
1. Diagonal relationship pairs elements diagonally across the table.
2. Such pairs share similar properties despite being in different groups.
3. Lithium (Group 1, period 2) and magnesium (Group 2, period 3) are a classic example.
4. They form similar compounds (e.g. Li3N and Mg3N2).
5. Na-K and F-Cl are same-group pairs, not diagonal.
6. So Li and Mg is the diagonal pair.
_Source: syllabus Science Ch 5 'Periodic Classification of Elements'_
Keep practising Periodic Classification of Elements
Browse all Periodic Classification of Elements questions for Andhra Pradesh SSC (Class 10), or explore more Science topics.
Related questions
Which of the following set of elements is written in order of their increasing metallic chOn moving from left to right in a period in the periodic table, the size of the atom.Which one of the following does not increase while moving down the group of the periodic tWhich of the following elements will form an acidic oxide?Three elements B, Si and Ge areWhat type of oxide would Eka-aluminium form?Arrange the following elements in the order of their increasing non-metallic character Li,Arrange the following elements in the order of their decreasing metallic character Na, Si,