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Physics question: Sum of protons and neutrons? That would be the mass number ... Sum of protons and neutons? Sum of protns and neutrons? Sum o protons and neutrons? Sum of neutrons and protosn? The sum of protons and nuetros? The sum ofprotons and neutrons is? The sum of the prtons and neutrons?
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wiki.answers.com/Q/Sum_of_protons_and_neutrons
wiki.answers.com/Q/Sum_of_protons_and_neutrons
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The atomic weight of an atom was originally defined as the sum of the number of its protons and its neutrons. Unfortunately, this idea proved not valid as exact measurements of the ... Unfortunately, improved measurements showed that the mass or weight of most atoms was not exactly the sum of the protons and neutrons.
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www.school-for-champions.com/SCIENCE/atomic_weight.htm
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Is there an atom that does not have neutrons? ... There is only one stable atom that does not have neutrons. It is an isotope of the element hydrogen called protium. Protium, which contains a single proton and a single electron, is the simplest atom. All other stable atoms contain some number of neutrons.
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education.jlab.org/qa/noneutrons_01.html
education.jlab.org/qa/noneutrons_01.html
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The mass of an atom is determined by the number of protons and neutrons in its nucleus. The mass number of an atom is the average atomic mass rounded off to the nearest whole number and is equal to the sum of protons and neutrons in the nucleus of an atom.
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www.aisp.net/vster/atomstuc2.htm
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The number of protons in an atom is called its atomic number, while the sum of the protons and neutrons is called its mass number. As you will see later on, it is the ratio of the number of neutrons to the number of protons that allows scientists to determine how stable an atom is.
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edmall.gsfc.nasa.gov/99invest.Site/science-briefs/ace/e...
edmall.gsfc.nasa.gov/99invest.Site/science-briefs/ace/ed-radioact.html
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Yet, we read about the number of protons, neutrons and electrons that make up the atoms of the different elements. ... Consider the sum and relationship of the protons (104) and the neutrons (157) of element 104.
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www.earthmatrix.com/theschemata/extract50.html
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protons electrons neutrons, protons and neutrons, number of neutrons: You can find this information on the periodic table. The number of protons is the Atomic Number, the big number in the box. The atomic weight is the sum of protons plus neutrons, so you subtract the Atomic Number from the Atomic Weight. ... About Sue Kayton;
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en.allexperts.com/q/Science-Kids-3250/2008/10/protons-e...
en.allexperts.com/q/Science-Kids-3250/2008/10/protons-electrons-neutrons.htm
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Science Question: Where Is The Atomic Mass Found? Atomic mass refers to the sum of protons and neutrons in an atom's nucleus. It is the combined mass of all the particles that constitute an atom. The ... Atomic mass refers to the sum of protons and neutrons in an atom's nucleus. It is the combined mass of all the particles...
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www.blurtit.com/q399194.html
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Homework Question: How Can The Atomic Number And Mass Number Of An Atom Be Used To Determine The Number Of Neutrons? Basically, mass number is the sum of protons plus neutrons, while atomic number is just ... Basically, mass number is the sum of protons plus neutrons, while atomic number is just the number of protons.
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www.blurtit.com/q311379.html
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