Fluorine has an atomic number of 9. then n=1 energy level has two elections, and the n=2 energy level has seven electrons. fluorine’s valence is a) +2 b) -2 c) +1 d) -1

its been noted for the past decade or so that there is some (approximately 5% to 7%) shrinkage in the brains of people who have schizophrenia, most notably in the gray matter, which is an important part structures in the brain’s amygdala, hippocampus and parahippocampus, which are all involved in memory storage and retrieval memory storage and retrieval.

explanation:

ive read articles

youre right there are