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Why repulsion is more responsible for greater energy of atoms not attraction(during formation of a molecule)?........urgent rply sooon

Why repulsion is more responsible for greater energy of atoms not attraction(during formation of a molecule)?........urgent rply sooon

Grade:12

1 Answers

Aman Bansal
592 Points
9 years ago

Dear Vishal,

As you may remember from chemistry, an atom consists of electrons orbiting around a nucleus. However, the electrons cannot choose any orbit they wish. They are restricted to orbits with only certain energies. Electrons can jump from one energy level to another, but they can never have orbits with energies other than the allowed energy levels.

Let's look at the simplest atom, a neutral hydrogen atom. Its energy levels are given in the diagram below. The x-axis shows the allowed energy levels of electrons in a hydrogen atom, numbered from 1 to 5. The y-axis shows each level's energy in electron volts (eV). One electron volt is the energy that an electron gains when it travels through a potential difference of one volt (1 eV = 1.6 x 10-19 Joules).

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