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Select the correct set of statements reg...

Select the correct set of statements regarding change in properties, as we move down the second group in periodic table.
(I) Atomic size increases.
(II) Electronegativity increases.
(III) Tendency to loose electrons increases.
(IV) Valency remain same.

A

I,II and III

B

II,III and IV0

C

I,II and IV

D

I,III and IV

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question regarding the changes in properties as we move down the second group of the periodic table, let's analyze each statement one by one. ### Step-by-Step Solution: 1. **Statement I: Atomic size increases.** - As we move down the group in the periodic table, the atomic size does indeed increase. This is because additional electron shells are added, which increases the distance between the nucleus and the outermost electrons. Therefore, this statement is **true**. 2. **Statement II: Electronegativity increases.** - Electronegativity tends to decrease as we move down a group. This is due to the increase in atomic size, which results in a greater distance between the nucleus and the valence electrons, leading to a weaker attraction for bonding electrons. Therefore, this statement is **false**. 3. **Statement III: Tendency to lose electrons increases.** - The tendency to lose electrons does increase as we move down the group. This is because the outer electrons are further away from the nucleus and are less tightly held due to the increased atomic size. Thus, they can be lost more easily. Therefore, this statement is **true**. 4. **Statement IV: Valency remains the same.** - The valency of elements in a group remains the same as we move down. For Group 2 elements, the valency is consistently 2, as they all have two electrons in their outermost shell. Therefore, this statement is **true**. ### Conclusion: Based on the analysis: - Statement I: True - Statement II: False - Statement III: True - Statement IV: True The correct set of statements regarding the change in properties as we move down the second group in the periodic table is **I, III, and IV**. ### Final Answer: The correct option is: **I, III, and IV**. ---
To solve the question regarding the changes in properties as we move down the second group of the periodic table, let's analyze each statement one by one. ### Step-by-Step Solution: 1. **Statement I: Atomic size increases.** - As we move down the group in the periodic table, the atomic size does indeed increase. This is because additional electron shells are added, which increases the distance between the nucleus and the outermost electrons. Therefore, this statement is **true**. 2. **Statement II: Electronegativity increases.** ...
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