actually total energy is the sum of potential energy and kinetic energy....potential energy= -2*kinetic energy . By using this relation you will get that sum of potential and kinetic energy is equal to the magnitude of kinetic energy and it is less than zero...hope this will be enough for you....
The energy of an electron which is (in a sense) revolving around the nucleus (it is actually distributed around the nucleus in the form of a cloud) depends upon how far it is from the nucleus, and also depends upon the number of protons in the nucleus. Nuclear physics is complicated.
Electrons are found in the electron cloud surrounding the nucleus of an atom in specific energy levels or orbitals. They are negatively charged subatomic particles that contribute to the overall charge and behavior of the atom.
The total energy of an atom with a negative nucleus and positive electron will be negative, given that the electron is bound to the nucleus through electrostatic attraction. This negative energy results from the potential energy associated with the attraction between the oppositely charged particles.
All electron shells represent an energy level - it doesn't matter if its the outermost shell or not. In order for there to be a release of energy the electron has to be coming from a higher energy state. The only energy state higher than the outer-most electron shell would be a free electron. The only way an electron becomes a free electron is that sufficient was provided to lift it from what-ever electron shell (energy level) it was previously in to escape velocity. The energy that it then releases in returning is then this exact same amount of energy.
When a metal atom loses an electron, it loses energy. This energy corresponds to the difference in energy levels between the electron's initial position and its final position outside the atom.
The energy of an electron which is (in a sense) revolving around the nucleus (it is actually distributed around the nucleus in the form of a cloud) depends upon how far it is from the nucleus, and also depends upon the number of protons in the nucleus. Nuclear physics is complicated.
Inside the atom, revolving around the nucleus
Electrons are found in the electron cloud surrounding the nucleus of an atom in specific energy levels or orbitals. They are negatively charged subatomic particles that contribute to the overall charge and behavior of the atom.
The energy required to remove an electron from a neutral atom is the atom's ionization energy. It represents the amount of energy needed to remove the most loosely bound electron from an atom in its gaseous state.
The electron that are revolving around the atom in a fixed path is having negative charge.
The total energy of an atom with a negative nucleus and positive electron will be negative, given that the electron is bound to the nucleus through electrostatic attraction. This negative energy results from the potential energy associated with the attraction between the oppositely charged particles.
Ionization energy is an expression linked to extraction of an electron.
All electron shells represent an energy level - it doesn't matter if its the outermost shell or not. In order for there to be a release of energy the electron has to be coming from a higher energy state. The only energy state higher than the outer-most electron shell would be a free electron. The only way an electron becomes a free electron is that sufficient was provided to lift it from what-ever electron shell (energy level) it was previously in to escape velocity. The energy that it then releases in returning is then this exact same amount of energy.
When a metal atom loses an electron, it loses energy. This energy corresponds to the difference in energy levels between the electron's initial position and its final position outside the atom.
When an atom absorbs ultraviolet energy and an electron is involved, the electron can move to a higher energy level or be ejected from the atom, leading to the atom becoming ionized or excited.
The amount of energy required to remove an electron form an at is the ionization energy.
When you move an electron in an atom from a lower energy level to a higher energy level, it is called an electron excitation. This process requires the electron to absorb energy to move to a higher energy state.