Would you expect neodymium and uranium to have similar properties?
Uranium and neodymium are very different chemical elements.
Where on the periodic table would you expect to find elements with similar properties and chemical characteristics?
molybdeum(Mo) or ruthenium (Ru) Actually, elements with similar chemical properties as Technetium would be Mn, Re, and Bh. This is because elements in the same group/family (column) have similar chemical properties. Elements in the same period (row) have the same number of energy levels (or shells).
The newest officially discovered elements are Ununquadium and Ununhexium so, we'll focus on those. Ununquadium will be part of the Carbon series, so we would expect it to have properties similar to those elements (e.g. 4 electrons in the outer shell). The closest relation to it in that group would be Lead. Ununhexium will be part of the Oxygen series, so, again, we would expect it to have properties similar to those elements (e.g. 6…
Uranium, atomic number 92, has several isotopes, and 238U is just one of them. Remember that a nucleon is one of the particles that make up the nucleus of an atom, and that means a proton or a neutron. In the case of this isotope of uranium, it has the 92 protons we'd expect for uranium, and it has 146 neutrons in its nucleus along with those protons. That's 238 necleons in the nucleus if…
What physical and chemical properties would you expect to find in two different samples of a pure substance?
There are thought to be about 5 million tons of the grade of ore being mined now, typically 0.1 to 0.25 percent uranium oxide. So that represents 5000 to 12500 tons of uranium. This will keep the industry going for some years yet. Eventually lower grade ores will have to be mined which will be more expensive, but there is no reason to expect a shortage.
Well, based on recent studies... In terms of power production, 1 kilogram of uranium-235 is equivalent to 2.7 million kilograms of coal. With those numbers in mind, I would expect 1 gram of uranium-237 to cost somewhere between $300-$600 million. There are many other factors involved but I do know that I need to be in the business of selling uranium because unemployment isn't paying my bills.
What elements would you expect to have some properties of a metal but some properties of a nonmetal?
The elements immediately above and below aluminum in the same column of a wide form periodic table: boron and gallium. As is usual for relatively light elements, aluminum is more like the element below it, gallium, than the one above it: Aluminum and gallium are both metals, while boron is a nonmetal. In compounds with oxyanions, however, boron is similar to aluminum compounds with oxyanions.
Why would you expect to see similar rocks and rock sturctures on two landmasses that were connected at one time?
Before you attempt to sell your valuables, take them to a certified gemologist, who will document each stone according to its physical properties. These properties will dictate the stones' values. Expect to pay for these certificates. Then, you can knowledgeably sell the gemstones to whomever will buy them, and for a fair price.
How does the mass per nucleon in uranium compare with the mass per nucleon in the fission fragments or uranium?
This is not something I really know anything about, but I do know that energy is liberated in the process, so you could expect it to be less in the fission fragments. It also depends on the nucleus. Proton and neutron masses differ somewhat, so it depends on what the ratio of protons and neutrons is as well.