Potential Energy: Why Electron in Hydrogen -Negative?

In summary, potential energy is the stored energy of an object that can be converted into other forms of energy. In the case of electrons in hydrogen, their potential energy is related to their position in relation to the positively charged nucleus. This potential energy is negative because the electron is attracted to the nucleus. In chemical bonding, potential energy is released as atoms come together and this energy determines the stability of the bond. The potential energy of an electron also affects its behavior in an atom by determining its allowed energy levels and orbitals. Changes in potential energy can result in the emission or absorption of light as electrons jump to different energy levels.
  • #1
MHD93
93
0
Why is the potential energy of an electron in hydrogen atom negative, where that of an object around the Earth is positive, although both systems have attractive forces, that have the same proportionality with distance 1/(distance)^2
 
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  • #2
Mohammad_93 said:
where that of an object around the Earth is positive

It's not?

[tex]U=-\frac{GMm}{r}[/tex]

Of course, there is an arbitrary constant hiding here which I tacitly set to zero. I suppose you could set it to be large enough that a given object has positive potential energy.
 

Related to Potential Energy: Why Electron in Hydrogen -Negative?

1. What is potential energy?

Potential energy is the stored energy that an object possesses due to its position or configuration. It is the energy that an object has the potential to convert into other forms of energy, such as kinetic energy.

2. How is potential energy related to electrons in hydrogen?

The potential energy of an electron in hydrogen is related to its position in relation to the nucleus of the hydrogen atom. As the electron gets closer to the nucleus, its potential energy decreases. This is because the attractive force between the positively charged nucleus and the negatively charged electron increases as they get closer together.

3. Why is the electron in hydrogen considered to have negative potential energy?

The electron in hydrogen is considered to have negative potential energy because it is attracted to the positively charged nucleus. In physics, the direction of the attractive force is opposite to the direction of the potential energy. Therefore, the potential energy of the electron is negative when it is attracted to the nucleus.

4. What is the role of potential energy in the formation of chemical bonds?

Potential energy plays a crucial role in the formation of chemical bonds between atoms. When atoms come together to form a bond, they release potential energy as they move closer together. This released energy is used to overcome the repulsive forces between the positively charged nuclei. The stability of a chemical bond is determined by the amount of potential energy released during bond formation.

5. How does potential energy affect the behavior of electrons in an atom?

The potential energy of an electron affects its behavior in an atom by determining its allowed energy levels and orbitals. Electrons can only exist in certain energy levels and orbitals based on their potential energy. This is why electrons do not fall into the nucleus, as their potential energy would become negative and violate the laws of physics. Additionally, changes in potential energy can cause electrons to jump to different energy levels, resulting in the emission or absorption of light.

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