reinstate(verb) restore to the previous state or rank. restore, reinstate, reestablish(verb) bring back into original existence, use, function, or position. restore law and order; reestablish peace in the region; restore the emperor to the throne.
For the quintessence of classical philosophy, see Aether (classical element). Boron is a chemical element with symbol B and atomic number 5. Produced entirely by cosmic ray spallation and supernovae and not by stellar nucleosynthesis, it is a low-abundance element in the Solar system and in the Earth's crust.
Boron has three valence electrons. It is in group 13. Outermost energy level is the the 3rd energy level and it has three electrons. Valence electrons are the electrons in the last energy level of an atom. You can also just look at the group number (13) and the second number is the number of valence electrons.