Non-ionic strotium
I believe that is a non-ionic strontium
The electron configuration 1s22s22p63s23p64s23d104p65s1 represents the electron distribution in an atom with 16 electrons, corresponding to the element sulfur (S). The numbers and letters indicate the energy levels (shells) and subshells where the electrons are found in the atom.
Selenium with 6-Valence electrons
The electron configuration 1s22s22p63s23p64s23d104p65s1 denotes the electron distribution in the atoms. It represents the orbitals where electrons are likely to be found in the atom. In this case, the notation indicates the distribution of electrons in the various energy levels and sublevels of the atom, following the Aufbau principle.
This element is bromine (Br).
Vanadium ( V) has that configuration. Its atomic number is 23.
The element with this electron configuration is manganese (Mn), which has 25 electrons.
The element is Argon. Its configuration is 2 8 8.
The element with electron configuration 1s22s23p1 is phosphorus, which has an atomic number of 15.
This electron configuration is for osmium (Os).
The element with the electron configuration 1s22s22p63s23p5 is fluorine (F).
Sodium has the configuration Ne 3s2 . Sodium is group-1 element.