Adiameter of a circle has endpoints a (-6, -8) and b (2, 10). find the center of the circle. find the radius. if your answer is not an integer, express it in radical form. write an equation for the circle.

The first thing we must do for this case is to use the formula of the midpoint to find the center of the circle.
 We have then:
 
 Substituting values we have:
 
 
 
 We are now looking for the radius of the circle. For this, we use the formula of distance between points.
 We have then:
 
 Substituting values we have:
 
 
 
 
 We now write the standard equation of the circle:
 
 Substituting values we have:
 

Element a has no reactivity because it has eight valence electrons and cannot gain anymore electron and it wouldn't lose any either