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The S-Block Elements

Question
CBSEENCH11007132
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What is the trend of atomic and ionic radii of alkaline earth metals within the group?

Solution

Within the group, the atomic as well as ionic radii increase in going from beryllium (Be) to radium (Ra). This is due to the addition of new shells, the effect of which is more predominate than the increase in nuclear charge.

Some More Questions From The s-Block Elements Chapter

Lithium shows similarities to magnesium in the chemical behaviour. What is the cause of this similarity?

What is the nature of lithium compounds?

Group 1 elements are called alkali metals. Why?

Why caesium can be used in photoelectric cell while lithium can not be?

In aqueous solution, Li+ ion has lowest mobility. Why?

Lithium has highest ionisation energy in group 1 elements, yet it is strongest reducing agent. Comment.

The softness of group 1 elements increases down the group with increasing atomic number. Give reason. 

Which is the most reactive alkali metal and why?

Why alkali metals do not form M2+ ions?

Name the radio active element in group 1. How does it resemble with the remaining elements of the group?

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