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S & P block (Part - 12) - Classification of Elements and Periodicity in Properties, Class 11 Video Lecture

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FAQs on S & P block (Part - 12) - Classification of Elements and Periodicity in Properties, Class 11 Video Lecture

1. What is the classification of elements based on their properties?

Ans. Elements are classified into different blocks based on their properties. The S-block elements include the first two groups (Group 1 and Group 2) of the periodic table, which are the alkali metals and alkaline earth metals, respectively. The P-block elements include the last six groups (Group 13 to Group 18) and consist of nonmetals, metalloids, and metals.

2. What is periodicity in the properties of elements?

Ans. Periodicity refers to the repeating pattern of chemical and physical properties of elements in the periodic table. Elements in the same group or period tend to have similar properties, and these properties change in a predictable manner as you move across a period or down a group. This periodicity arises due to the arrangement of electrons in the atoms and the trends in atomic size, ionization energy, electron affinity, and electronegativity.

3. What are the properties of S-block elements?

Ans. The S-block elements, which include the alkali metals and alkaline earth metals, have several common properties. Some of these properties include low ionization energies, high reactivity with water and oxygen, the tendency to form ionic compounds, and the ability to form cations easily. Alkali metals are softer, have lower melting and boiling points, and are more reactive than alkaline earth metals.

4. What are the properties of P-block elements?

Ans. P-block elements, which include nonmetals, metalloids, and metals, exhibit a wide range of properties. Nonmetals in the p-block tend to be brittle, have lower melting and boiling points, and have higher electronegativity. Metalloids have properties intermediate between metals and nonmetals. P-block metals have varying degrees of metallic character and can form positive ions.

5. How does the periodic table help in predicting properties of elements?

Ans. The periodic table provides a systematic arrangement of elements based on their atomic number and electron configuration. This arrangement allows for the prediction of properties of elements based on their position in the table. Elements in the same group tend to have similar properties, while those in the same period show trends in properties as you move across the table. This helps chemists predict the behavior of elements and their compounds and aids in understanding chemical reactions and patterns in the periodic table.

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Nov 17, 2024 Last updated

S & P block (Part - 12) - Classification of Elements and Periodicity in Properties, Class 11 for Class 112024 is part of Class 11 preparation. The notes and questions for S & P block (Part - 12) - Classification of Elements and Periodicity in Properties, Class 11 have been prepared according to the Class 11 exam syllabus. Information about S & P block (Part - 12) - Classification of Elements and Periodicity in Properties, Class 11 covers all important topics for Class 112024 Exam. Find important definitions, questions, notes, meanings, examples, exercises and tests below for S & P block (Part - 12) - Classification of Elements and Periodicity in Properties, Class 11.

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