Directions: Read the following paragraph and answer the questions below.

The Periodic Table of Elements, a tabular display developed by Dmitri Mendeleev, organizes all known elements based on their atomic number, electron configuration, and recurring chemical properties. Elements are listed in order of increasing atomic number, arranged in rows (periods) and columns (groups) that highlight trends in elements' properties. Some of these groupings include alkali metals, halogens, and noble gases. Understanding the structure and conventions of the Periodic Table is fundamental to the study of chemistry.