1. What is an electron?
An electron is a subatomic particle with a negative charge that orbits the nucleus of an atom.
2. What is the electronic configuration of an atom?
The electronic configuration of an atom is a description of how the electrons are distributed among the various energy levels or shells in an atom.
3. What is the Pauli exclusion principle?
The Pauli exclusion principle states that no two electrons in an atom can have the same set of four quantum numbers.
4. What is the Aufbau principle?
The Aufbau principle states that electrons fill orbitals in order of increasing energy levels, starting with the lowest energy level.
5. What is Hund's rule?
Hund's rule states that when electrons occupy orbitals of equal energy, they first fill each orbital with one electron before pairing up.
6. What is an orbital?
An orbital is a three-dimensional region around the nucleus of an atom that can contain up to two electrons with opposite spin.
7. What is an electron configuration notation?
An electron configuration notation is a shorthand notation used to represent the distribution of electrons among the various energy levels in an atom.
8. What is an ionization energy?
Ionization energy is the energy required to remove an electron from an atom or ion in its ground state.
9. What is a valence electron?
A valence electron is an electron in the outermost energy level of an atom that is available for bonding with other atoms.
10. What is electron affinity?
Electron affinity is the energy change that occurs when an electron is added to a neutral atom to form a negative ion.
