This chapter is covering the many vital elements from the s-block of the modern periodic table. It covers all the properties, structural and functional characteristics, reactions, and applications of the s-block elements. In-depth learning of this chapter from the Chemistry will help you to get well-acquainted about these Group 1 Elements. Many elements form this group of periodic table is very important. So their properties and behaviours both are important for the students of chemistry for their higher study also. Therefore this article about Class 11 chemistry chapter 10 is very essential to understand.
Some main subtopics are Group 1 Elements: Alkali Metals, General Characteristics Of The Compounds Of The Alkali Metal, Anomalous Properties Of Lithium, Some Important Compounds Of Sodium, Biological Importance Of Sodium And Potassium, Group 2 Elements: Alkaline Earth Metals, General Characteristics Of Compounds Of The Alkaline Earth Metals, Anomalous Behaviour Of Beryllium, Some Important Compounds Of Calcium and Biological Importance Of Magnesium And Calcium.
The s-Block of the periodic table having two categories of elements: group1 (alkali metals) and Group 2 (alkaline earth metals). Such names are given because their oxides and hydroxides are alkaline in nature. The alkali metals are known such due to one s-electron and the alkaline earth metals by two s-electrons in their valence shell of their atoms.
The student will learn the electronic configuration, alkali metals, ionization enthalpy, atomic and ionic radii and hydration enthalpy of the elements. The chapter explains the physical properties and chemical properties of all elements in the s-block group. General Characteristics and uses of the compounds of all alkali metals will help students to understand these elements. Various oxides, hydroxides, halides, salts of the oxo-acids will help students.
Anomalous Properties of the Lithium, the difference between Lithium and some other Alkali Metals, and important points of similarities between Lithium and Magnesium, Biological Importance of the Sodium and Potassium are some other important topics This chapter will explain the existing regular trend in the physical and chemical properties of the alkali metal with increasing atomic numbers. The atomic and ionic sizes increase and the ionization enthalpies are in decreasing nature systematically down the group. Similar kind of trends is also possible among the properties of the alkaline earth metals. Chemistry of the alkaline earth metals is very much similar to the alkali metals. But, some differences are also arising, because of reduced atomic and ionic sizes and increased cationic charges in the case of alkaline earth metals. For example, their oxides and hydroxides are less basic than the alkali metal oxides and hydroxides.
These topics are also important for examinations like NEET and JEE Mains. With the help of these topics, students will be able to describe the general characteristics of the alkali metals and their compounds. The chapter explains the general characteristics of the alkaline earth metals and their compounds. Manufacturing at a large scale is also important. The chapter also deals with the properties and uses of industrially important sodium and calcium compounds like Portland cement.