Identify each section of the periodic table

Blue: Metals

Yellow: Metalloids

Red: Non-metals

 Given Below

Explanation:  The Blue portion belongs to the elements which come in the category of the Metals as they have a capacity to lose electrons and their appearance is shiny as well.

Yellow portion belongs to the elements which are known as Metalloids . These are the elements which have both the properties of metals as well as non metals.

Red Portion contains all the Non Metals which have a tendency of accepting electrons.

answer : a model is often used to explain and make things easier to understand when any scientific topic needs to be demonstrated and explained.

as in this case where a scientist wants to use a model to present the results of his detailed scientific investigation. he should do it as it will him to make the audience understand the concept in a much better way. also, it can be changed according to new scientific understandings.

it is the most commonly accepted one