Both of the configurations have the correct numbers of electrons in each orbital, it is just a matter of how the electronic configuration notation is written (here is an explanation why). The electron configuration of an atom is the particular distribution of electrons among available shells. Therefore we have (still incorrect) 1s 2 2s 2 2p 6 3s 2 3p 6 3d 9 4s 2. Loading... Unsubscribe from Amarjeet kumar helping for …

Each symbol has a superscript on the right giving the number of electrons in that subshell.

The electron configurations of silicon (14 electrons), phosphorus (15 electrons), sulfur (16 electrons), chlorine (17 electrons), and argon (18 electrons) are analogous in the electron configurations of their outer shells to their corresponding family members carbon, nitrogen, oxygen, fluorine, and neon, respectively, except that the principal quantum number of the outer shell of the …

The periodic table is a tabular display of the chemical elements organized on the basis of their atomic numbers, electron configurations, and chemical properties. The electron configuration of an atom is very important as it helps to predict the chemical, electrical and magnetic behavior of substance. Example The electronic configuration of a lithium atom is 1s 2 2s, which indicates there are two electrons in the 1s sublevel and one electron in the 2s energy sublevel. Atomic structure , electronic configuration,ions,formula of compound Amarjeet kumar helping for RRB. 2 nd energy level has; 2n 2 =2.2 2 =8 electrons.

Here is the easiest formula by the help of this formula you can remember the electronic configurations of the elements. Electrons are located energy levels starting from the first energy levels.




For example, sodium, which has a single electron in its outer 3s orbital, can lose that electron to attain the electron configuration of neon. Correct Electron Configuration for Copper (Cu) Electron configuration of an atom represents that how the electrons are distributed in its atom among the orbits (shells) and sub shells. The electron configuration is the distribution of electrons of an atom or molecule (or other physical structure) in atomic or molecular orbitals.

The electronic configuration notations for all of the elements are available in one chart. It is described by a notation that lists the subshell symbols, one after another. 1 st energy level has; 2n 2 =2.1 2 =2 electrons. For example, we can find number of electrons in four energy level with following formula; 2n 2. 3rd energy level has; 2n 2 =2.3 2 =18 electrons. When two different elements have the same electron configuration, they are called isoelectronic. Electron Configuration.
Chlorine, with seven valence electrons, can gain one electron to attain the configuration of argon.