Αποτελέσματα Αναζήτησης
27 Οκτ 2024 · Electrons are arranged in principal quantum shells, which are numbered by principal quantum numbers. Representation of orbitals (the dot represents the nucleus of the atom) showing spherical s orbitals (a), p orbitals containing ‘lobes’ along the x, y and z axis. An overview of the shells, subshells and orbitals in an atom.
Sodium is a soft, silvery-white, highly reactive metal. Sodium is an alkali metal, being in group 1 of the periodic table, because it has a single electron in its outer shell that it readily donates, creating a positively charged atom—the Na+ cation.
2 Μαρ 2023 · Sodium (Na) has one valence electron in its outermost shell, which it can lose to form a stable ion with a full valence shell. Therefore, the valency of sodium is 1. When sodium loses its valence electron, it forms a positively charged ion with a charge of +1.
The electronic configuration of sodium can be shown in a diagram. The dots represent electrons. Electrons may be shown using dots or crosses.
The electron configuration of sodium is \(1s^2 2s^2 2p^6 3s^1\) (Table \(\PageIndex{1}\)). The first ten electrons of the sodium atom are the inner-shell electrons and the configuration of just those ten electrons is exactly the same as the configuration of the element neon \(\left( Z=10 \right)\).
Sodium has 11 electrons. These will be arranged as: 2 electrons in the first shell; 8 electrons in the second shell
18 Σεπ 2024 · To write the electron configuration for sodium, the first two electrons enter the 1s orbital. Since the 1s orbital can hold only two electrons the next two enter the 2s orbital. The next six electrons enter the 2p subshell. The p subshell can hold a maximum of six electrons. Hence, the remaining one electron enters the 3s orbital.
