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Q7: Credit: OpenStax, University Physics Volume 3, Find the atomic numbers, mass numbers, and neutron numbers for (a) Cu, (b) %iNa, (c) 34Po, (d) 2Ca, and (e) 326Pb...

Question

Q7: Credit: OpenStax, University Physics Volume 3, Find the atomic numbers, mass numbers, and neutron numbers for (a) Cu, (b) %iNa, (c) 34Po, (d) 2Ca, and (e) 326Pb

Q7: Credit: OpenStax, University Physics Volume 3, Find the atomic numbers, mass numbers, and neutron numbers for (a) Cu, (b) %iNa, (c) 34Po, (d) 2Ca, and (e) 326Pb



Answers

Find the atomic numbers, mass numbers, and neutron numbers for (a) $^{58}_{29} \mathrm{Cu},$ (b) $^{24}_{11} \mathrm{Na},$ (c) $^{210}_{84} \mathrm{Po},$ (d) $^{45}_{20} \mathrm{Ca},$ and (e) $^{206}_{82} \mathrm{Pb}.$

So we're asked to find the protons, neutrons and electrons in each of the species written here to find the number of protons, we need to look on the periodic table and just find the atomic number for ccm that's going to be 55, uranium is going to be 92 ID china's 53 a CN calpurnia Copper museum is going to be 100 and 12. The number of electrons is the same as the number of protons because all of these are neutral atoms. So we have 55 electrons in CCM 92 uranium 53 iodine and 100 and 12 in property seem to find the number of neutrons. You're going to take the mass number given and subtract the atomic number or a number of protons. So for CCM 137 minus 55 is 82 neutrons for uranium 2 38 minus 92 is 146 neutrons. For iodine, 131 minus 53 is 78. And lastly for copper TCM to 85 minus 112 is equal to 173 neutrons.

Hey everyone sir. In this question, they ask A number of protons, number of electrons and number of neutrons. So give the number of protons electrons, neutrons, neutral items of each of the following I sort of so first I sort of this five year and 10. So in this case five is the society nothing but atomic number 10 is the A meeting with the atomic mass number. So I'm more a pretends nothing but atomic number. Nowadays. He can say five. The number of electrons that same as the top number of protons that again for you. And you know, number of neutrons that is young is a call to paint minus for you. Nothing but five. Yeah, the next marketing uh, 80 Mercury 1 99. So atomic number is 80 atomic mass number 1 99. So the number of protons are a b Number of electrons there also 80. Now in a number of neutrons 1 99 -80. So 100 and minding in bed and 19. Just stop Man. Next part. 3rd 1 is 29 copper 63. So 29 insight and a 63. So the number of protons, they're nothing but inside and that is equal to 29. Yeah. Then the number of electrons, the required number of protons and they're so there again 29 man, You know, a number of new dance is equal to 63 -29. Nothing but 34. What? 34 then in a 60 13. So six is that mhm mhm Atomic number that it said and 13 is the atomic mass number. So number of pronounced nothing but a number of Atomic number. This again says six. The number of predictions are the same as the number of protons. So again six. And number of neutrons that equal to seven. The next 30 Force Iranian 77. So 34 is the atomic number. And there is nothing but a number of towns. Then, since the Moroccan dancer, 34 number of electrons are also 34 9 77 is the atomic mass number, nothing but a, so a minus 30. Uh, inside that is 77 minus 34. We'll get 43 as the number of new France. Thanks a lot.

We're asked to find the protons, neutrons and the electrons for each of these. So, to find the number of protons, you can look on the periodic table and just find the atomic number. So for radium is going to be 88 for lead, PB is going to be 82 for carbon. It's six and for sodium it's 11 to find the number of electrons. Since all of these are atoms and their neutral, it's the same as the number of protons. So we can just copy over the numbers of protons. And then to find the number of neutrons, you're going to subtract the mass number minus the atomic number. So for radium it's 2 26 minus 88 gives you 100 and 38 neutrons for lead to oh six minus 82 is 124. For carbon 14 minus six is eight, and for sodium 23 minus 11 is 12 neutron.

Okay in this question, we have to find out there to make mass number atomic number number of protons, proton number a number of nuclear as we have given the nitrogen. Yeah, 13 in the seven. Yes. From the elbow symbol, we can find out the atomic mass number is 13 and number of so it Atomic number is equal to seven, a number of neutrons equal to minus Zach. So therefore number of Newtown is equal to 13 seven. Therefore, number of neutrons become six and the number of protons, Which is equal to zero, People do again six. A number of nuclear number nucleons is december proton plus New Trend, which is equal to 12.


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