Description
Introduction
An element is a pure substance that cannot be further broken down into smaller substances by chemical means. Elements can be classified into atoms and molecules. An atom is the smallest piece of an element. A molecule is made up of two or more atoms.
A compound is a substance made up of two or more elements, which are bonded chemically. A compound can be broken down into smaller substance by chemical means. The properties of compound differ from its constituent elements.
Example: Water is a compound made up of two elements hydrogen and oxygen.
Two or more substances physically combine together to form a mixture. It contains a mixture of molecules and atoms.A very good example of a mixture is air, which contains various gases in different proportions.
In this topic, you will learn more about elements, compounds, and mixtures.
Matter is built up of elementary particles namely, atoms, molecules and ions where an atom constitutes the basic unit of matter.
Matter may be homogenous [having the same composition and characteristics throughout] or heterogeneous [having different composition and characteristics throughout].
The homogenous matter is further classified into elements, compounds and mixtures.
Elements
The Term
An element is a pure substance, made up of one kind of atoms only.
The atoms constitute the smallest particle of an element.
Elements cannot be converted or broken down into two or more simple substances by physical or by chemical means.
Compounds
The Term
A compound is a pure substance made up of two or more different elements [atoms] combined chemically in a fixed proportion.
Characteristics – of Compounds
Pure substance formed chemically from two or more elements.
Components in a compound are present in a definite proportion.
Compound is always homogenous [i.e. identical composition]
Particles in a compound are of one kind.
Compounds have a definite set of properties.
Component elements in the compound do not retain their original properties.
Components in a compound cannot be separated by physical means but by chemical means only.
Mixtures
The Term
A mixture is made up of two or more elements or compounds or both mechanically mixed together in any proportion.
A mixture retains the properties of its constituent elements or compounds.
About Course
In this section will learn the following chapters:
1.INTRODUCTION
2.SEPARATION
Course Curriculum
ELEMENT COMPOUND AND MIXTURE – 23 APRIL – INTRODUCTION TO ELEMENTS COMPOUND AND MIXTURE
-
ELEMENTS, COMPOUNDS AND MIXTURES – CORE CONCEPT – ELEMENT
06:25 -
ELEMENT COMPOUND AND MIXTURE – CORE CONCEPT – SYMBOLS OF ELEMENT
11:27 -
ELEMENT COMPOUND AND MIXTURE – CORE CONCEPT – WHAT ARE ELEMENT COMPOUND AND MIXTURE
16:29 -
ELEMENT COMPOUND AND MIXTURE – CORE CONCEPT – COMPOUND
20:04 -
ELEMENT COMPOUND AND MIXTURE – CORE CONCEPT – MORE ABOUT ELEMENT
17:27 -
ELEMENTS COMPOUNDS AND MIXTURES – PHYSICAL CLASS – BIFURCATION OF ELEMENTS INTO METALS NONMETALS METALLOIDS
18:06 -
ELEMENTS, COMPOUNDS AND MIXTURES – PHYSICAL CLASS – TYPES OF ELEMENTS
15:36 -
ELEMENT COMPOUND AND MIXTURE – PHYSICAL CLASS – COMPOUND
13:21 -
VIII DIFFERENCE BETWEEN COMPOUNDS AND MIXTURE AND SEPRATION OF SOLID MIXTURE UPDATED
01:03:09 -
INTRODUCTION TO ELEMENTS AND COMPOUNDS
28:44 -
VIII – CHEMISTRY – PHYSICAL CLASS – ELEMENTS, COMPOUND AND MIXTURESEDITED
36:11 -
VIII – CHEMISTRY – ELEMENTS, COMPOUND AND MIXTURE – FLOWCHART WITH EXAMPLE
27:01
SEPERATION – 01 APRIL – SEPARATION OF MIXTURE
Student Ratings & Reviews
No Review Yet