His location and salon does not warrant higher than $300 a month. The hair stylist are paying $200 a week. I dont know why. But it depends on location, and perks as to what rent should be. It will vary so much.
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.
According to Jefferson Lab, the properties of boron are: 1  Atomic number (number of protons in the nucleus): 5. 2  Atomic symbol (on the Periodic Table of Elements): B. 3  Atomic weight (average mass of the atom): 10.81. 4  Density: 2.37 grams per cubic centimeter.