Physics, asked by raotd, 2 months ago

Anyone genius answer this

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Answered by msrk2018

1

Answer:

yes iam that genius answer is alkali metals

Answered by Anonymous

7

Answer:

Li resembles to element X

Explanation:

Li resembles to element X which is not a member of alkali metals. The group of X must be II group, because certain elements of 2nd period show similarity with their diagonal elements in the 3rd period as shown below : Thus, Li resembles Mg, Be resembles Al and B resembles Si. This is called diagonal relationship and is due to the reason that these pairs of element have almost identical ionic radii and polarizing power (i.e. charge/size ratio). Element of second period are known as bridge elements.

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