Chemistry World

The metallic elements are the most              numerous of the elements and of the metallic elements the d-block elements are the most important: their chemical properties are central to both industry and contemporary research.   The two terms d-block metal and transition metal are often used interchangeably; however, they do not mean the same thing. The name transition metal originally derived from the fact that their chemical properties were transitional between those of the s and p blocks. Now, however, the IUPAC definition of a transition element is that it is an element that has an incomplete d subshell in either the neutral atom or its ions. Thus the Group 12 elements (Zn, Cd, Hg) are members of the d block but are not transition elements. In the following discussion, it will be convenient to refer to each row of the d block as a series, with the 3d series the first row of the block (Period 4), the 4d serie...

Function of amino acids : Definition:  Amino acids are substances containing element like nitrogen and hydrogen and are found in proteins. They acids occur naturally within the body. Function  : Amino acids molecules are  the building blocks of proteins and are compounds that play several vital roles in your body . They 're required for important processes just like the building of proteins and synthesis of hormones and neurotransmitters. Some  may additionally be taken in supplement type  to boost athletic performance naturally and improve mood. They ’re classified as essential, conditionaly  essential  or nonessential based on many factors .

Definitions of solute  Solvent and Solution, Solute: solute may be a substance that may be dissolved by a solvent to form a solution. A solute may be available in several forms. It can be gas, liquid, or solid. The solvent is a substance that dissolves the solute and  breaks the the solute apart and distributes solute molecules equally. This makes a homogeneous mixture (solution) that's same throughout. Example : An example of a solute is sugar dissolving in water. Solvent: solvent is that the element of a solution which is present in the largest quantity. it's the substance in which the solute molecule are dissolved. Example: • The solvent for sugar is water. • Nitrogen is solvent for air. Solution: The homogeneous mixture of two or more  substances is called solution. A solution can be present in any  state. It consists of a solute and a solvent. The solute is that the substance that's dissolved within the solvent. the number of solute mole...