Question

Do atoms normally exist in free state? Why not? If not, how do they exist? If yes, explain? [3 MARKS]

Answer 1

Each point: 1 Mark

1. No, atoms of most of the elements are chemically very reactive and do not exist in the free state (as single atoms).
2. Atoms usually exist in two ways:
(a) In the form of molecules
(b) In the form of ions.
3. There are a few atoms which are very stable because of completely filled valence shell, like the noble gases. These gases exist in the form of atoms and not as molecules.