can the mass number be zero or negative?

... 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 ... 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. 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 ... ... mass number nuclei. To overcome this misunderstanding, we apply the ... even if one mass is more than or equal to then Equation (2.9) operates and ... The total number of electrons present in an element is the measure used to calculate the atomic number of that element. It is common knowledge that zinc is an ... 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 ... Mass number of the most abundant isotope of the element with atomic number Z ... number equal to n. If there is no stable isotope, choose the one with ... Oct 27, 2011 ... by an equal sign (=) and the fixed value (optionally followed by ... (same mass number, chain mode or same charge number, charge mode). A = mass number, equal to the sum of protons and neutrons in the nucleus. Z = atomic number, equal to the number of protons in the nucleus; Z is also equal ... respect to the mass number at 10 sccm H2 flow rate are shown in Fig. 4. In the case of the Ar/CF4 plasma, C6F9. + was maximal in intensity in the CnF2n-3. + ...