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.
The number of neutrons in an element can also vary, and if two atoms of the same element have different numbers of neutrons, then they are called isotopes. To figure out how many neutrons are in the nucleus, you must know the mass number.he number of electrons in an element can change. For a neutral atom (net charge of zero), the number of protons is exactly equal to the number of electrons. So the number of electrons is also the same as the atomic number. However, it is possible to remove electrons and not change the identity of an element.