WebSep 13, 2006 · Since the vast majority of an atom’s mass is found its protons and neutrons, subtracting the number of protons (i.e. the … WebJul 28, 2024 · The total number of protons and neutrons in an atom is called its mass number (A). The number of neutrons is therefore the difference between the mass number and the atomic number: A – Z = number of neutrons. atomicnumber(Z) = …
Atomic number - Wikipedia
WebMar 23, 2024 · No. Explanation: Protons have a positive charge, and electrons have a negative charge. If there is an equal amount of electrons and protons, they will cancel … WebApr 6, 2024 · The mass of protons and neutrons are almost equal are are taken to be approximately 1 amu (atomic mass unit). So the mass of an atom is the mass of the protons and neutrons in it. This is why the sum of the number of protons and neutrons in an atom equals its atomic mass number. Answer link thinkcell download msi
Neutrons - Discovery, Charge, Mass, Properties, and Applications
WebAn isotope is a variant of an element in which it has an equal number or protons but a varied number of neutrons. The notation of an isotope occurs by adding a subscipt and superscript to the left side of an element such as 238 92U (uranium isotope) ... We can determine the number of neutrons as #14-6=8# neutrons. Example 2. Given the … Webneutron, neutral subatomic particle that is a constituent of every atomic nucleus except ordinary hydrogen. It has no electric charge and a rest mass equal to 1.67492749804 × … WebJan 17, 2024 · To find the number of neutrons, subtract the number of protons from the mass number. number of neutrons=40−19=21. Why are protons not equal neutrons? Neutrons are the particles in an atom that have a neutral charge. They … thinkcell download for mac