Question

3. How do atom exists in nature? Explain with examples.​

Answer 1

Explanation:

Atoms of most of the elements exist in the form of molecule or ion, since they are most reactive. For example, hydrogen, oxygen, chlorine, etc. However, atoms of some elements, which are non-reactive, exist in free-state in nature. For example helium, neon, argon, etc.

Answer 2

Explanation:

They are made up of protons, neutrons and electrons. Except noble gases, atoms are chemically reactive in nature. Therefore, they either exist in form of combination as molecules or they exist in stable form as ions. ... Example of atoms existing as molecule - water containing hydrogen and oxygen.