what is the role of mass number in determining the type and energy of radiation used for treatment?

Nov 22, 2024 ... This approximation of mass can be used to easily calculate how many neutrons an element has by simply subtracting the number of protons from the ... ... equal to Z + N (Figure 2). The mass of the nucleus in atomic mass units (amu) is usually slightly different from the mass number. Atoms of the same element ... The correct answer is (D) The nucleus contains both protons and neutrons, the sum of which determines the mass number. May 24, 2020 ... ... of an atom. Mass number or atomic mass is equal to the total number of protons and neutrons present in the nucleus. For example, the mass number ... Jul 8, 2020 ... When an α-particle is emitted, mass number of nuclide X is reduced to 4, and its charge number is reduced to 2, But when a β-particle is emitted, mass number ... Sep 3, 2020 ... ... mass unit (amu). The amu was originally defined based on hydrogen ... equal to its mass number (a whole number sum of protons and ... The state of a gas is defined by various properties which we can observe with our senses, including the gas pressure (p), temperature (T), mass (number of ... The atomic number of an element states the number of protons in the nucleus of every atom of that element. The number of electrons in an atom is equal to the ... Specifically, the atomic number corresponds to the number of protons found in the nucleus of an atom. Since each element on the periodic table has a unique ... 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 ...