how do you know that 2-8-1 is in the ground state ?

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how do you know that 2-8-1 is in the ground state ?

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https://chem.libretexts.org/Courses/Northern_Michigan_University/CH_215:_Chemistry_of_the_Elements_Fall_2023/01:_Atoms_and_Electronic_Structure/1.07:_How_to_Write_a_Ground_State_Electron_Configuration

https://chem.libretexts.org/Courses/Northern_Michigan_University/CH_215:_Chemistry_of_the_Elements_Fall_2023/01:_Atoms_and_Electronic_Structure/1.07:_How_to_Write_a_Ground_State_Electron_Configuration
1.7: How to Write a Ground State Electron Configuration
28 août 2023Solution. 1. Locate the atom on the periodic table. 2. Locate the noble gas element in the period above the element of interest. 3. Continue the electron configuration from the noble gas until you reach the element of interest. 4. Put the noble gas in brackets and write the remainder of the electron configuration.

https://chem.libretexts.org/Courses/Pacific_Union_College/Quantum_Chemistry/08:_Multielectron_Atoms/8.10:_Hund’s_Rules_Determine_the_Term_Symbols_of_the_Ground_Electronic_States

https://chem.libretexts.org/Courses/Pacific_Union_College/Quantum_Chemistry/08:_Multielectron_Atoms/8.10:_Hund’s_Rules_Determine_the_Term_Symbols_of_the_Ground_Electronic_States
8.10: Hund’s Rules Determine the Term Symbols of the Ground Electronic …
30 juin 2023Rule 2 predicts a F F state since that is the highest multiplicity with L = 3 L = 3: So the ground state is from this more narrowed list: 3F4 3 F 4, 3F3 3 F 3, 3F2 3 F 2. Rule 3 predicts the lowest J J term since the d shell is less than half full. That is the J = 2 J = 2 state. Therefore for this system, the atom will have a …

https://chem.libretexts.org / Bookshelves / Inorganic_Chemistry / Map:_Inorganic_Chemistry_(Housecroft) / 01:_Basic_Concepts-_Atoms / 1.09:_The_Aufbau_Principle / 1.9A:_Ground_State_Electronic_Configurations

https://chem.libretexts.org / Bookshelves / Inorganic_Chemistry / Map:_Inorganic_Chemistry_(Housecroft) / 01:_Basic_Concepts-_Atoms / 1.09:_The_Aufbau_Principle / 1.9A:_Ground_State_Electronic_Configurations
1.9A: Ground State Electronic Configurations – Chemistry LibreTexts
16 janv. 2023Example: 1s 2 For writing ground state electron configurations, a few main steps should be followed. Find the amount of electrons in the atom. Example: Na: 11 e-Na +: 10 e-Fill orbitals following the model until all electrons have been accounted for. Example: Na: 11 e-1s 2 2s 2 2p 6 3s 1 or Na +: 1s 2 2p 6

https://openstax.org/books/chemistry-2e/pages/6-4-electronic-structure-of-atoms-electron-configurations

https://openstax.org/books/chemistry-2e/pages/6-4-electronic-structure-of-atoms-electron-configurations
6.4 Electronic Structure of Atoms (Electron Configurations)
Figure 6.29 shows the lowest energy, or ground-state, electron configuration for these elements as well as that for atoms of each of the known elements. Figure 6.29 This version of the periodic table shows the outer-shell electron configuration of each element. Note that down each group, the configuration is often similar.

https://chemistry.stackexchange.com/questions/64458/how-do-i-find-the-ground-state-term-symbol-for-transition-metal-complexes

https://chemistry.stackexchange.com/questions/64458/how-do-i-find-the-ground-state-term-symbol-for-transition-metal-complexes
inorganic chemistry – How do I find the ground state term symbol for …
The ground state is a $mathrm{(t_{2g})^2}$ configuration. Clearly, the green configuration is more favourable than the red one (Hund’s first rule). The question then becomes how you obtain the possible term symbols for a $mathrm{(t_{2g})^2}$ configuration, and which of them correspond to the green configuration and which to the red. …

https://openstax.org/books/organic-chemistry/pages/1-3-atomic-structure-electron-configurations

https://openstax.org/books/organic-chemistry/pages/1-3-atomic-structure-electron-configurations
1.3 Atomic Structure: Electron Configurations – OpenStax
Hydrogen, for instance, has only one electron, which must occupy the lowest-energy orbital. Thus, hydrogen has a 1s ground-state configuration. Carbon has six electrons and the ground-state configuration 1s 2 2s 2 2p x 1 2p y 1, and so forth. Note that a superscript is used to represent the number of electrons in a particular orbital.

https://socratic.org/chemistry/the-bohr-model-of-the-atom/excited-states-and-ground-states

https://socratic.org/chemistry/the-bohr-model-of-the-atom/excited-states-and-ground-states
Excited States and Ground States – Chemistry | Socratic
An excited state is an energy level of an atom, ion, or molecule in which an electron is at a higher energy level than its ground state. An electron is normally in its ground state, the lowest energy state available. After absorbing energy, it may jump from the ground state to a higher energy level, called an excited .

https://ell.stackexchange.com/questions/223098/did-you-notice-that-he-past-simple-or-past-perfect

chem.ucalgary.ca/courses/351/mechanistic_etext/Ch01/ch1-2-3.html
Ch 1 : Orbital Fillling & Electron configurations – Faculty of Science
You should be able to identify both ground and excited state electron configurations. Example 1 : What is the ground state electron configuration of carbon ? Answer : Carbon is the 6th element in the periodic table, hence the atomic number Z = 6, and therefore has 6 electrons. simple: 1s 2 2s 2 2p 2:

https://www.thoughtco.com/definition-of-ground-state-604422

https://www.thoughtco.com/definition-of-ground-state-604422
What Is Ground State in Chemistry? – ThoughtCo
Ground State Definition (Chemistry and Physics) The ground state is the lowest energy state of an atom or part of an atom. Magictorch/Getty Images. In chemistry and physics, the ground state is defined as the lowest allowed energy state of an atom, molecule, or ion. In other words, the ground represents the most stable configuration.

https://en.wikipedia.org/wiki/Ground_state

https://en.wikipedia.org/wiki/Ground_state
Ground state – Wikipedia
The ground state of a quantum-mechanical system is its stationary state of lowest energy; the energy of the ground state is known as the zero-point energy of the system. An excited state is any state with energy greater than the ground state. In quantum field theory, the ground state is usually called the vacuum or the vacuum .
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