Which element will be more reactive and why – the element whose atomic number is 10 or the one whose atomic number is 11?
The element with atomic number 11 is more reactive than the element with atomic number 10 . This is because of the electronic configuration of the atoms. The element with the atomic number 11 , has the configuration of (2,8,1) , which means it can easily lose an electron to attain stability. Thus, before losing the electron, it is not stable and is said to be more reactive. While the element with the atomic number 10 , has the configuration of (2,8), which means it is already stable with a completely filled L shell and does not have to gain or lose electrons to attain stability. Thus, it is said to be less reactive.
