Question : A diagonal relationship is found between which pair of the following elements?
Option 1: Li and Mg
Option 2: Be and B
Option 3: Be and Mg
Option 4: Na and Mg
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Correct Answer: Li and Mg
Solution : The correct answer is Li and Mg .
The relationship exists between Li (Lithium) and Mg (Magnesium). This means that they are in different parts of the periodic table, they share some similar properties because their atoms and ions are roughly the same size. Li and Mg have atoms that are similar in size, which makes them act alike in different ways. Li has a charge of +1, and is a bit bigger, while Mg has a charge of +2 and is slightly smaller.
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