Question

A nucleus with an atomic number of 145 and a mass number of 45 must have how many electrons, neutrons, and protons? 

          A nucleus with an atomic number of 145 and a mass number of 45 must have how many electrons, neutrons, and protons?

Added by Karen O.

Chemistry: Structure and Properties
Chemistry: Structure and Properties
Nivaldo Tro 2nd Edition
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A nucleus with an atomic number of 145 and a mass number of 45 must have how many electrons, neutrons, and protons?
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Transcript

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00:01 We are given that for an atom the number of protons number of protons that is given as 45 and the mass number of that atom which is given as 100 and we need to find the number of neutrons in that atom we know that mass number formule is given by number of protons plus number of neutrons.
00:44 If we represent mass number by a, number of protons by p and number of neutrons by n, then we get this formula...
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