how do isotopes with specific mass numbers that undergo positron emission or gamma emission allow for the visualization of biological processes?

... mass number. The number of protons and neutrons is often—but not always—equal. Two atoms having the same atomic number (i.e., belonging to the same element) ... 2) Mass Concentration. The mass concentration of a solution is equal to the mass ... The number of moles we started with is equal to the number of moles of ... ... equal to 75 U/mL). Data of patients in two groups were collected and evaluated such as gender, age, body mass, number of patients with chemical burn ... of nuclei with mass number A, τ Aγ = λAγ /c ≈ 30/A s, is much smaller than ... are equal to the Lorentz factors of the parent nuclei γ A = γ n. Neu ... The number of electrons in a neutral atom equals the: A. Mass number. B ... For what kind of radiation rem is not approximately equal to rad? A. Alpha ... Atomic number is equivalent to the number of neutrons while the mass number is equivalent to the sum of the number of protons and number of electrons. The mass number is approximately equal to the atomic mass, which is the mass of a single atom of a element measured in atomic mass units (amu). The atomic mass ... By the way, the mass of an element is not equal to the sum of the masses of ... As long as the number of atoms remains the same the relative mass does not change. May 26, 2021 ... Step 1: Identify the element. Step 2: Find the number of protons of the element from the periodic table. The number of protons is equal to the atomic number of ... ... mass number is being discussed. Occupational (using the NRC's definition of ... Positron is a particle having a mass equal to that of the electron and a positive ...