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You are watching: What is the sum of protons and neutrons in an atomic nucleus


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Atoms space the smallest pieces of issue that retain your chemical identity. Atom contain a variety of particles, consisting of protons, neutrons and also electrons. Amongst these, protons space positively charged, when electrons space negatively charged and neutrons space neutrally charged. The protons and also neutrons exist within the nucleus, while electrons are...


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Atoms room the smallest fragments of issue that retain their chemical identity. Atoms contain a variety of particles, including protons, neutrons and also electrons. Among these, protons are positively charged, if electrons room negatively charged and also neutrons space neutrally charged. The protons and also neutrons exist within the nucleus, when electrons space located external it. 

Each facet is defined by 2 terms: atom number and mass number. The atom number is the very same as the number of protons in the nucleus. Mass number, on the other hand, is the sum full of protons and neutrons of one atom.

To identify the variety of protons and neutrons in the atom of a provided element, we need to know the atomic number and also mass variety of the element. Making use of that information, we can discover the number of protons and neutrons as:

number of protons = atom number

number of neutron = mass number - variety of protons

Hope this helps.

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