What are elements \(90-103\) called?

The periodic table of elements is a comprehensive chart that organizes all known elements according to increasing atomic number and recurring chemical properties. Elements are arranged in rows, called periods, and columns, known as groups or families. As students delve into chemistry education, understanding the layout of the periodic table is crucial, as it not only reflects the order of elements but also their relationships to one another.

For example, elements in the same column typically share similar characteristics and behaviors in chemical reactions. The periodic table is divided into blocks, with the Actinide series constituting one of these. This group showcases specific trends and properties important for understanding advanced chemistry topics. Learning to efficiently navigate the periodic table is a vital skill for any student in chemistry.

An atomic number is a fundamental concept in chemistry education, representing the number of protons found in the nucleus of an atom of a particular element. It is a unique identifier, as no two elements share the same atomic number, making it a primary means for organizing the periodic table. The atomic number determines an element's position on the table, and as a result, its chemical behavior.

Within the Actinide series, the atomic numbers run from 90 (Thorium, Th) to 103 (Lawrencium, Lr). Understanding atomic numbers helps students predict and explain the properties of elements, as well as their reactivity and the types of chemical bonds they can form. The educational process involves studying patterns and trends that are apparent when considering these numbers in the context of periodic table positioning.

Chemistry education is critical for equipping students with the knowledge to understand the world at a molecular level. Through studying concepts like the periodic table and atomic numbers, students gain insight into the composition and behavior of substances. Instruction on the Actinide series, for example, is not only about memorizing names and numbers but also about comprehending the underlying principles that govern atomic structure and how these elements interact in natural and experimental conditions.

Effective chemistry education fosters critical thinking and analytical skills by encouraging students to apply concepts to novel problems. When students inquire about elements such as those in the Actinide series, they're encouraged to research and understand the broader aspects of these elements, their roles in current technologies, and their implications for future developments. This holistic approach aims to enrich students' academic and practical understanding of chemistry.