Before 1928, scientists believed that all organic compounds only came from living organisms minerals dead things rocks

Before 1928, scientists believed that all organic compounds only came from living organisms. The word organic itself came from the word organism/s. This gave way to the old theory of "Vitalism" where scientists have long believed that synthesis of living organisms can be a way to harvest organic compounds. It was later proven that such is  not true because of the presence of urine, an inorganic compound found within organisms.

The problem here is that according to aufbau principle before 3d orbital 4s subshell comes.after filling 3p orbital with electrons you have 4 electrons left, you place two in 4s with opposite spin and the other two in 3d in any of its two orbitals of total five orbitals with the same spin.

257 grams h2o i think