Atomic Structure
I am in the second period and belong to the same family (group) as silicon.
(speed with direction)
I am the only element in the third period that has eight electrons in my outermost energy level.
I am in the fifth period and have properties similar to my favorite cousin gold.
(convergent, divergent, or transform boundary)
23 (atomic mass)-11(atomic number)=12 neutrons
I have seven valence electrons and have two more protons than phosphorus.