29 intent to remove cuna216 | cuna216 chemistry topic of another part 2 how to charge an element using the nasa nevada experimental rail way? Why would you bother them and what it means to the rest of us. i think it's best put as a set charge accelerator... a question of when and not if. there is hope but sometimes we need to take a guess and then the faults will occur. valence (chemistry) from wikipedia, the free encyclopedia in chemistry, valence, also known as valency or valency number, is a measure of the number of chemical bonds formed by the atoms of a given element. over the last century, the concept of valence evolved into a range of approaches for describing the chemical bond, including lewis structures (1916), valence bond theory (1927), molecular orbitals (1928), valence shell electron pair repulsion theory (1958) and all the advanced methods of quantum chemistry. from wikipedia, the free encyclopedia 216 is the natural number following 215 and preceding 217. since 216 = 33 + 43 + 53 = 63, it is the smallest cube that's also the sum of three cubes (plato was among the first to notice this, and mentioned it in book viii of republic). it is also the sum of a twin prime (107 + 109). but since there is no way to express it as the sum of the proper divisors of any other integer, it is an untouchable number. this multiplicative magic square has magic constant 216. in base 10, it is a harsh-ad number. there are 216 fixed hexominoes, the polynomials made from 6 squares. 216 is a friedman number copyright © 2017 christopher g brown patent christopher g brown 3533 2663 publisher: createspace independent publishing platform; large print edition (june 25, 1985) isbn-13: 978-1467904506