Differentiate between compounds and elements on the basis of their chemical properties giving examples of each.
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Explanation:
An element is a material that consists of a single type of atom. Each atom type contains the same number of protons. Chemical bonds link elements together to form more complex molecules called compounds. A compound consists of two or more types of elements held together by covalent or ionic bonds.
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Differentiate between compounds and elements on the basis of their chemical properties giving examples of each.
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Compound:-
- A compound contains atoms of different elements chemically combined together in a fixed ratio.
- Compounds contain different elements in a fixed ratio arranged in a defined manner through chemical bonds.
- A compound can be separated into simple substances by chemical methods/reactions.
- The list of compounds is endless.
- A compound is represented using a formula.
- e.g. Water (H2O), sodium chloride (NaC1), sodium bicarbonate (NaHCO3) etc.
Elements:-
- An element is a pure chemical substance made of same type of atom.
- Elements are distinguished by their atomic number (number of protons in their nucleus).
- Elements cannot be broken down into simpler substances by chemical reactions.
- There are about 117 elements that have been observed. Can be classified as metal, non-metal, or metalloid.
- An element is represented using symbols.
- e.g. iron, copper, silver, gold, nickel etc.
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