manganese, iron and cobalt are elements of d-block which are located in period 4 and known as first row of transition element. Atomic radii of them tend to be approximately same. explain.

Question 3(multiple choice worth 4 points) (04.04 lc) what does it mean when an element is reduced? it empties a valance shell, reducing its atomic radius. it gains electrons, reducing its overall charge. it increases electronegativity, reducing its ability to bond. it loses electrons, reducing its electron number.

Describe at least two advantages and two disadvantages of using hydropower as a source of energy.

What atom has the largest atomic radius