How many neutrons are in the nucleus of an atom of 
Co?
Definitions:
Lens
A transparent structure in the eye that focuses light rays onto the retina, allowing visual images to be clearly observed.
Myopia
A vision condition where objects nearby are seen clearly, but those at a distance appear blurred.
Blindsight
A condition in which a person can respond to a visual stimulus without consciously experiencing it.
Cataracts
A medical condition where the lens of the eye becomes progressively opaque, leading to blurred vision.
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