The rule is that all of the orbitals (respectively - all of shells and blocks) of the element must be filled with their maximum number of electrons.Such phenomenon is observed in the noble gases (group VIII A) - their last blocks - s and p are filled with the total number of 8 electron (2 for s and 6 for p).
For instance - The Argon (Ar) has 18 electrons and its configuration is:
1s22s22p63s23p6
An element is said to be chemically reactive when it combines with another element. These two elements will create a new compound.
The electron configuration of sulfur is [Ne) 3s2.3p4.
No. Chlorine's electron configuration is unstable. As a result, chlorine is a highly reactive element.
The answer is nitrogen. Nitrogen is one example of an element that has the same valence electron configuration as phosphorus.Ê
Ra, radium
An element is said to be chemically reactive when it combines with another element. These two elements will create a new compound.
Hydrogen
The electron configuration of hassium is: [Rn]5f14.6d6.7s2.
The electron configuration of the element with the atomic number 39 (yttrium) is: [Kr]4d15s2.
Hydrogen
The element with that electron configuration is Iron.
The electron configuration of sulfur is [Ne) 3s2.3p4.
Sulfur (S) has the electron configuration 1s22s22p63s23p4.
1s2 2s2 2p6 3s2 3p3 is the electron configuration of element 15.
it's stable, but it is a reactive element!
Calcium is a reactive chemical element.
The electron configuration of phosphorus is [Ne]3s2.3p3.