How does polarisation affect the covalent character of ions?

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In summary, when 2 unequal ions of different sizes approach, the smaller ion attracts the bigger's electrons. This is because the positively charged ion attracts electrons of the negative one. Size is not the defining factor in this attraction. However, it is not clear how this attraction leads to the imparting of covalent character.
  • #1
Shivam123
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They say that when 2 unequal ions of different sizes approach;the smaller ion attracts the bigger's electrons..now of course they are talking about the smaller one's nucleus,then why not that ion's electrons..will they not repel the other ion's electrons? and why not the other way round-the bigger attracting/repelling the smaller..? And even if we assume there is a net attraction and the bigger(anion) gets a bit distorted,then how is it ever going to affect/alter the former capability of the anion of losing electron(s) and out of nowhere impact sharing(co-valent) character to it?
 
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  • #2
Shivam123 said:
They say that when 2 unequal ions of different sizes approach;the smaller ion attracts the bigger's electrons

No, the positively charged ions attracts electrons of the negative one. Size is irrelevant.

That is - it is relevant, but it is not the size that defines what attracts what.
 
  • #3
Ok got that thank you. But then again how does the attraction impart covalent character?
 

FAQ: How does polarisation affect the covalent character of ions?

What is polarisation and why does it occur?

Polarisation is a physical phenomenon that occurs when light waves vibrate in a single plane instead of in all directions. This happens when light waves interact with certain materials or are reflected off of certain surfaces. The polarisation of light can be explained by the wave nature of light and the orientation of the electric field of the light waves.

How does polarisation affect the properties of light?

Polarisation affects many properties of light, including its intensity, direction of propagation, and ability to pass through certain materials. It can also impact the appearance of objects, as polarised light can reveal hidden patterns or textures that are not visible to the naked eye.

What are some real-world applications of polarisation?

Polarisation has various practical applications in different fields. For example, polarised sunglasses use this phenomenon to reduce glare and improve visibility in bright sunlight. In the field of photography, polarising filters can enhance the clarity and contrast of images. Polarisation is also used in liquid crystal displays (LCDs) to control the amount of light passing through the screen, creating images and colors.

How is polarisation studied and measured?

Polarisation can be studied and measured through various methods, including the use of polarising filters, polarimeters, and polariscopes. These tools allow scientists to manipulate and analyze the polarisation of light and determine its degree and orientation.

What is the significance of polarisation in understanding the natural world?

Polarisation plays a crucial role in understanding various natural phenomena, such as the properties of light, the behavior of electromagnetic waves, and the structure of materials. It also has practical applications in fields such as physics, chemistry, biology, and engineering, making it an essential concept in scientific research and technological advancements.

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