12. An electron moving around the nucleus possesses two types of energies which are

Atomicity occurs to prevent updates of the database occurring only partially, which can cause greater problems than rejecting the whole series outright.some are monatomic, diatomic, triatomic etc because it shows the number of atoms. for example, monatomic means it contains only one atom.

Particle exchange energy though elastic collision , hope this .

C: plants and animals