The electronic configuration of 2-8-18-18-4 corresponds to the element with atomic number 54, which is xenon (Xe). Xenon is a noble gas and is known for its lack of reactivity due to its complete outer electron shell. It is commonly used in lighting and various types of lasers.
Carbon. The 6 indicates the atomic number.
The metals and non metals which tend to form positive ions are cations. It is because of their electronic configuration.
Potassium (K) is not isoelectronic with any other element in its neutral state. However, when it loses one electron to form a potassium ion (K⁺), it becomes isoelectronic with argon (Ar), as both have the same electron configuration of 18 electrons. Isoelectronic species have the same number of electrons and similar electronic structures, which in this case occurs when K loses an electron.
The electron configuration you provided corresponds to the element cesium (Cs). It can be broken down as follows: the configuration ends in 6s1, indicating that cesium has one electron in its outermost shell. The preceding configurations show that it has a total of 55 electrons, matching the atomic number of cesium on the periodic table.
Electron configuration describes the distribution of electrons in an atom's orbitals. It is represented using a notation that indicates the energy levels and types of orbitals occupied by electrons, such as 1s² 2s² 2p⁶ for a neon atom. This configuration helps understand an atom's chemical properties, reactivity, and placement in the periodic table. Each element has a unique electron configuration that reflects its number of electrons and their arrangement.
The element is Argon. Its configuration is 2 8 8.
definition of electronic configuration
Iron (Fe)
the element is tungsten with the electronic configuration Xe 4f14 5d4 6s2
The ground state electronic configuration of an element X can be determined by using the periodic table. Each element has a unique arrangement of electrons in its atoms. For example, the ground state electronic configuration of carbon (C) is 1s2 2s2 2p2.
The element that forms a 2+ ion with the same electronic configuration as Ar is Calcium (Ca). When Calcium loses two electrons, it attains the same electronic configuration as argon by having a full outer shell of electrons.
The element that forms an ion with an electronic configuration of Ar with a -2 charge is oxygen (O). When oxygen gains two electrons, it achieves a stable electron configuration similar to argon.
valence electrons and electronic configuration.
Oxygen
The halogen family, F,Cl,Br,I,As all have outer shells with 7 electrons
When the electronic configuration of any element is not the same as we expected, it is known as anomalous EC. For Eg Cromium, Copper and heavier d and f block elements.
The period of an element is determined by electronic configuration.Period is same as the number of energy levels of the element.