How can one show that elements that have different appearances have a similar chemical properties?

Ineed with my science work! it’s due tomorrow!

Electric charge is what ? a. kinetic energy b. radiation c. discovery d. electricity

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.