Question

Give 2 differences between element and compound (four points)

Answer 1

Answer:

Differences between Elements and Compound are-

1. A compound contains atoms of different elements chemically combined together in a fixed ratio. An element is a pure chemical substance made of same type of atom.

2. A compound is represented using its chemical formula that represents the symbols of its constituent elements and the number of atoms of each element in one molecule of the compound. An element is represented using symbols.

3. Compounds contain different elements in a fixed ratio arranged in a defined manner through chemical bonds. They contain only one type of molecule. Elements that compose the compound are chemically combined.Elements contain only one type of atom. Each atom has the same atomic number i.e., the same number of protons in their nucleus.

4. Example of Compound- Water (H2O), Sodium chloride (NaCl), Sodium bicarbonate (NaHCO3) etc.Exapmle of Elements-Hydrogen (H), Oxygen (O), Sodium (Na), Chlorine (Cl), Carbon (C), Iron (Fe), copper (Cu), silver (Ag), gold (Au) etc.

5. A compound can be separated into simpler substances by chemical methods/reactions. Elements cannot be broken down into simpler substances by chemical reactions.