Evidence That Schizophrenia is a Brain Disease. Data from modern scientific research proves that schizophrenia is unequivocally a biological disease of the brain, just like Alzheimer's Disease and Bipolar Disorder. For one thing, schizophrenia is now known to be partially caused by genetics and to be inherited.
One mole of atoms of any element always has the same number of atoms (about 7023602200000000000â 6.022Ã1023). This number was chosen so that if an element has an atomic mass of 1 u, a mole of atoms of that element has a mass close to one gram.
If an atom of an element has a mass number of 32 and 20 neutrons in its nucleus, what is the atomic number of the element?