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Lesson 42: Inside the Nucleus Nuclear physical intelligence gets its name from the detail that we are concerned with only the marrow squash of the atom. ? Chemistry demand to pay attention to the electrons of the atom, since electrons determine how the chemical bonds form. ? Nuclear physics is concerned with the sum, since the nucleus determines the segment as well as the nuclear reactions that can happen. The Nucleons Nucleon is the name given to anything that you find in the nucleus. This includes protons and neutrons. Protons ? ? ? ? attributeization is p+ positive bill = +e fate = mp = 1.6726e-27 kg calculate of protons in a nucleus = atomic identification result ? symbol is Z Remember e stands for unproblematic weigh down, and does not necessarily have anything to do with electrons. It is the number of protons in the nucleus that determine which element you are dealings with. A wiz proton is the entire nucleus of the simplest atom, hydroge n Neutrons ? ? ? ? symbol is n0 no charge push-down store = mn = 1.6749e-27 kg number of neutrons in a nucleus = neutron number ? symbol is N Notice that a neutron does have a slightly bigger clutch than a proton. This will be important later. The total number of nucleons (protons + neutrons) in a nucleus is called the atomic mass number ? symbol is A.

A=Z+N A = atomic mass number = # of nucleons Z = atomic number = # of protons N = neutron number = # of neutrons Writing out Symbols To write down which nucleus we have, we flavor the chemical symbol from the oscillatory table along with the A and Z values. ? The A and Z values are contin! uously written to the left of symbol, with A on top. A Z X 11/28/2008 © studyphysics.ca Page 1 of 5 / Section 16.1  typeface 1: An nucleus has 7 protons and 8 neutrons. Identify what element it is, and write out its symbol. According to the periodic table, the element with 7 protons is nitrogen. Since nitrogen has 7 protons, its Z value is 7. To get the A value, we have to add the number of protons and neutrons to...If you lack to get a full essay, order it on our website: BestEssayCheap.com

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