The portion of the flux leaves the curved surface of the cylinder is 60%.
<h3 /><h3>What are electrons?</h3>
The electrons are the spinning objects around the nucleus of the atom of the element in an orbit.
If a point charge is located at the center of a cylinder and the electric flux leaving one end of the cylinder is 20% of the total flux leaving the cylinder.
If 20% of the flux leave from one end, then another 20% will leave from another end.
So, the net flux through curved surface is 
100 -20 -20 = 60%
Thus, the total flux  leaves the curved surface of the cylinder is 60%
Learn more about electrons.
brainly.com/question/1255220
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Answer:
A pure substance consisting only of atoms with the same number of protons in their nuclei-these appear on the periodic table
Oxygen
Hydrogen
Carbon
Sulfur
Phosphate
Nitrogen
Magnesium
Calcium
Potassium
Chlorine
(I know that these are more examples than needed, but you can use any)
 
        
             
        
        
        
D. write down the coefficients
        
             
        
        
        
<span>You experience physiological changes and a feeling of fear simultaneously. Hope this helped!</span>