Question

Q5 Differentiate between Elements
and Compounds with example​

Answer 1

Sl. No. Differentiating Property Element Compound

1. Elements are pure substances which are composed of only one type of atom. Compound are substances which are formed by two or more different types of elements that are united chemically in fixed proportions.

2. There are nearly 118 elements (at present) of which nearly 94 occur naturally on Earth. Compounds are almost endless.

3. Elements are classified as either metals, nonmetals or metalloids. Compounds are classified according to their bonds which can be ionic, molecular or metallic.

4. Some of the examples of elements are Iron, Copper, Gold, etc. A few examples of compounds are NaOH, NaCl, etc.

5. Elements are represented by symbols and numbers. For example, Sodium is represented by Na. Compounds are represented by their chemical formula. For example, salt is represented by the formula NaCl.

6. Elements can be distinguished by their atomic number. Distinguished by their fixed ratio of different elements (arranged in a defined manner).

7. As only one type of atoms makes up an element, all the properties of that atom are represented by its atom. In the case of compounds, the same type of molecules makes up the compound.

8. Elements cannot be broken down by chemical reactions. Compounds can be easily separated into simpler substances by chemical reactions.