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Why is a shorter wavelength of light emitted when an electron falls from n equals 4 to n equals 1 than when an electron falls from n equals 2 to n equals 1?
Shorter wavelength = more energy. The farther the electron falls, the more energy that will be emitted.
Compare the amount of visible matter in the universe with the total amount of matter and energy?
4% Visible Matter (Atoms) 23% Dark Matter 73% Dark Energy
What will affect the amount of gravitational potential energy?
The mass, height and the force of gravity at the location.
What region is there the highest probability of finding an electron?
The region with the highest probability of finding an electron is typically the area closest to the nucleus of an atom, specifically within the electron cloud defined by atomic orbitals. These orbitals, such as s, p, d, and f orbitals, represent areas where the electron density is highest. The exact probability distribution varies depending on the type of orbital and the energy level of the electron, but generally, electrons are most likely to be found in regions near the nucleus.
What is the conversion between N-m to eV and vice-versa?
A Newton*Meter (N·m) is a Joule (J) and a Joule is the derived unit of energy in SI units. N=(kg*m/s^2) so a N·m=(kg*m^2/s^2)=J. An electron volt is also a quantity of energy equal to approximately 1.602×10−19 J. Correspondingly, one joule equals 6.24150974×1018 eV. By definition, it is equal to the amount of kinetic energy gained by a single unbound electron when it accelerates through an electric potential difference of one volt. Thus it is 1 volt (1 joule per coulomb) multiplied by the electron charge (1 e, or 1.60217653(14)×10−19 C). Therefore, one electron volt is equal to 1.60217653(14)×10−19 J. The electron volt is not an SI unit and its value is derived from knowing the charge of the electron. To change Js to eV divide by the charge of an electron 1.602x10-19 C. To change eVs to Js multiply by the charge of an electron 1.602x10-19 C.
What does electron orbital describe?
An electron orbital describes the probable location of an electron within an atom. It represents the three-dimensional region where an electron is most likely to be found, based on the electron's energy level, shape, and orientation within the atom. Each orbital can hold a maximum of two electrons with opposite spins.
How does the energy of core electron compare with the energy of valence electrons?
The energy is higher.
What is each electron's definite energy based on?
The electron's definite energy is based on it's location around the nucleus
What is often thought of as a region of space in which there is a high probability of finding an electron?
An orbital is often thought of as a region of space in which there is a high probability of finding an electron in an atom. It is a mathematical function that describes the location and energy of an electron in the three-dimensional space around an atomic nucleus.
What does the wave models say about electrons?
Wave models describe electrons as both particles and waves. They predict the probability distribution of finding an electron in a specific location around the nucleus of an atom, rather than a specific trajectory. The wave nature of electrons is central to quantum mechanics and explains various phenomena such as electron diffraction and the quantization of energy levels in atoms.
The region of space where electrons of a certain energy move about the nucleus of an atom?
The region of space where electrons of a certain energy move about the nucleus of an atom is called an electron orbital. Electron orbitals are regions where there is a high probability of finding an electron based on its energy level. Different electron orbitals have different shapes and orientations.
What is the three dimensional region around a nucleus where an electron may be found?
The three dimensional region around the nucleus of an atom that indicates the probability of the location of an electron is called an orbital. Different orbitals exist in atoms depending on the number of electrons the atom possesses. The element hydrogen only has one orbital, whereas heavier elements such as radon have many.
Do electrons occupy space around the nucleus in an atom?
Electrons move in definite regions called electron clouds or energy levels. Electron clouds do in fact contain energy levels, it is a common misconception. It is just that there are many levels each holding 2 electrons which are very many close in energy. the cloud idea was a very early model of metals, bands wre recognised nearly 100 years ago.
What is the following phrase describes how the position of an electron relates to its energy?
The phrase "quantum mechanical model of the atom" describes how the position of an electron relates to its energy. In this model, electrons are described by probability distributions called orbitals, which represent the likelihood of finding an electron at a particular location. The energy of an electron is quantized, meaning it can only exist in certain discrete energy levels within an atom.
Which two locations are MOST probable for locating the cloud of electrons?
The two most probable locations for locating the cloud of electrons in an atom are within the electron cloud surrounding the nucleus and in specific energy levels or atomic orbitals based on the quantum mechanical model of the atom. The exact position and movement of an electron within the electron cloud cannot be precisely determined due to the probabilistic nature of electron behavior.
Orbit of electrons around the nucleus of an atom?
According to quantum mechanics, electrons do not travel in circular orbits around the nucleus like planets around the sun. Instead, they are better described as existing in electron clouds or orbitals, which represent the probability of finding an electron at a certain location around the nucleus. The electron's behavior is governed by quantum principles such as wave-particle duality and the Heisenberg uncertainty principle.
If an electron were to fall down to the e1 level from e3 level how would it's energy compare to one that fell to the e2 level?
The electron falling to the e1 level from the e3 level would release more energy compared to one falling to the e2 level. This is because the energy difference between e3 and e1 levels is larger than that between e3 and e2 levels. The energy released is proportional to the difference in energy levels.
