The Periodic Table and Periodicity – Real World Applications section illustrates how periodic trends and elemental properties influence real-life decisions in industry, technology, environment, and biology. This module is designed for school students, undergraduates, and competitive exam aspirants, helping learners recognize the practical power of the periodic table beyond academics.
In this section, you will explore applications such as:
Material selection and engineering design based on atomic size, metallic character, and reactivity
Energy and battery technology – role of alkali and alkaline earth metals
Semiconductor and electronics industry – periodic trends in conductivity and doping
Medicinal and biological relevance of elements – trace elements and toxicity prediction
Environmental chemistry – behavior and mobility of pollutants across groups and periods
Household and industrial chemicals – acidity/basicity trends in cleaning agents and fertilizers
Halogens in sanitation and disinfection – reactivity and oxidizing power trends
Catalyst selection using periodic position and electronic configuration
Application-based and case-driven questions aligned with competency-based exam formats
The content is structured to enhance scientific literacy, improve application-oriented reasoning, and prepare students for real-world and competency-based assessments increasingly emphasized in modern curricula.
Understand how the Periodic Table acts as a decision-making tool in science and technology, reinforcing its role as the cornerstone of Inorganic Chemistry.
Q. What is the primary reason for the increase in ionization energy across a period?
A.
Increased nuclear charge
B.
Decreased electron shielding
C.
Increased atomic radius
D.
Decreased electronegativity
Solution
As you move across a period, the nuclear charge increases while the shielding effect remains relatively constant, leading to higher ionization energy.
Q. What is the primary use of aluminum in metallurgy?
A.
Electrical wiring
B.
Construction materials
C.
Aerospace applications
D.
All of the above
Solution
Aluminum is used in various applications including electrical wiring, construction materials, and aerospace due to its lightweight and corrosion-resistant properties.
