Question

By considering their position in the Periodic Table, which one of the following elements would you expect to have maximum metallic characteristic?
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Answer 1

Explanation:

Ga is expected to be most metallic

Ga

1) We know that,  Metallic character decreases from left to right in period and increases down a group.

2) Therefore, out of above options Be and Ga should be more metallic in nature.

3) Now, out of Be and Ga, Ga is bigger in size and hence has more tendency to lose electrons.

4) Thus ,Gallium is more metallic in nature. 

Answer 2

Answer:

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kya haal hai janemaan jija.. xd

Hypermetropia (far-sightedness – the image of nearby objects is focussed beyond the retina) is corrected by using a convex lens of suitable power. The eye loses its power of accommodation at old age.