10. You find two neutral atoms. Each has 8 protons in its nucleus, but one has 7 neutrons, and the other has 8 neutrons. It is correct to state that:
A) The two atoms are from two different elements.B) The two atoms are from the same element, but are different ions of that element. C) The two atoms are from the same element, but are different isopleths of that element. D) The two atoms are from the same element, but are different isotopes of that element. E) The two atoms are from the same cola, but presented in different packaging. Feedback: The element is determined by the number of protons, so if each atom has the same number of protons, the atoms are the same element. Changing the number of neutrons primarily affects the weight, giving a different isotope of the same element. (Changing the number of neutrons too much can introduce radioactivity, so the isotope won’t hang around forever.) Ions are made by gaining or losing electrons. Isopleths are lines on a map connecting places with the same concentration of something that someone has measured, not exactly relevant here. And colarequires making atoms into molecules, and then mixing molecules of several sorts (water, sweetener, coloring agent, flavoring agent, perhaps caffeine) to make cola.11. You get some stuff, and start taking it apart. But, you are restricted to the use of “ordinary” means(fire, sunlight, your digestive system) and you cannot use atom smashers or atom bombs. What isthe smallest piece that you are likely to be able to produce:12. Chemical reactions involve:
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