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FREE Sample Here
FREE Sample Here

... B. The atom also contains 12 electrons. C. The atom also contains 23 electrons. D. There are no other factors related to the 11 protons and 12 neutrons. Section 2.4 Difficulty Level: Easy 17. Atoms of elements belonging to the same group have an identical number of A. total electrons. B. energy leve ...
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FREE Sample Here

... B. The atomic weights include protons and neutrons at 1 amu each, but they also include electrons, which weigh a lot less than one. C. The atomic weight is the weighted average of the masses of the known isotopes of an element. D. The atomic weights do not include isotopes. Section 2.4 Difficulty Le ...
nuclear physics - Thierry Karsenti
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... to abide by the recommendations made on the basis of the mark obtained by the learner. As their instructor you should encourage learners to evaluate themselves by answering all the questions provided below. Education research shows that this will help learners be more prepared and help them articula ...
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FREE Sample Here

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FREE Sample Here

FREE Sample Here
FREE Sample Here

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FREE Sample Here - We can offer most test bank and
FREE Sample Here - We can offer most test bank and

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Isotope



Isotopes are variants of a particular chemical element which differ in neutron number, although all isotopes of a given element have the same number of protons in each atom. The term isotope is formed from the Greek roots isos (ἴσος ""equal"") and topos (τόπος ""place""), meaning ""the same place""; thus, the meaning behind the name it is that different isotopes of a single element occupy the same position on the periodic table. The number of protons within the atom's nucleus is called atomic number and is equal to the number of electrons in the neutral (non-ionized) atom. Each atomic number identifies a specific element, but not the isotope; an atom of a given element may have a wide range in its number of neutrons. The number of nucleons (both protons and neutrons) in the nucleus is the atom's mass number, and each isotope of a given element has a different mass number.For example, carbon-12, carbon-13 and carbon-14 are three isotopes of the element carbon with mass numbers 12, 13 and 14 respectively. The atomic number of carbon is 6, which means that every carbon atom has 6 protons, so that the neutron numbers of these isotopes are 6, 7 and 8 respectively.
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