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What is the highest sub level electron occupy in uranium 238?
In uranium 238, the highest sublevel electron occupies is the 5f sublevel. Uranium has 92 electrons, so filling up the electron configuration involves reaching the 5f sublevel before completing the entire orbital diagram.
What was the last natural element discovered?
The last naturally occurring element to be discovered is tennessine, with the atomic number 117. It was first synthesized in 2010 by a team of Russian and American scientists. Tennessine is a highly unstable element that exists for only fractions of a second before decaying into other elements.
What rock travels further before deposition arkosic or quartz sandstone?
Generally, arkosic sandstone would travel less distance before deposition compared to quartz sandstone. This is because arkosic sandstone is typically less resistant to weathering and erosion due to its higher content of feldspar, which weathers more easily compared to quartz. Quartz sandstone, being more durable, can travel further before getting deposited.
What are two reasons why carbon has a higher first ionization energy than lithium?
Ioniz. energy is the amount of energy it takes to remove one electron from an atom. Lithium has one too many electrons before it reaches the highly stable octet of the immediately previous noble gas- so it gives it up really easily. Carbon is farther away from the octet in this manner, so it will take more energy. Also, lithium is a metal and metals tend to lose electrons. Carbon, a nonmetal, tends to gain electrons.
What could you compare a volcanic mountain to?
A volcanic mountain could be compared to a pressure cooker, as both involve the build-up of intense pressure before releasing energy through an explosive process. It could also be compared to a dragon, symbolizing its fiery nature and potential for destruction.
The type of particle a uranium-235 must absorb before it can split?
A uranium-235 nucleus must absorb a neutron in order to become unstable and split, a process known as nuclear fission. This absorption of a neutron causes the uranium-235 nucleus to become uranium-236, which then splits into two smaller nuclei, releasing additional neutrons and a large amount of energy.
What element comes before uranium and after on table?
Before uranium is protactinium. After uranium is neptunium.
What was used before uranium?
Before uranium discovery and before the 150 years long study of its properties the nuclear energy was nonexistent.
What isotope of uranium has less than 3 neutrons?
None, no element beyond lithium can have a stable isotope with as few as 3 neutrons. If by some happenstance a uranium nucleus did form with as few as 3 neutrons (this would be U95) it would instantly burst apart in a flash of protons before it could even be detected.
Is uranium dangerous before it is processed?
Processed or not uranium has some disadvantages: 1. Uranium is a possible polluting agent of the natural environment. 2. Uranium is a toxic and radioactive chemical element. 3. Uranium release radium and radon.
What Before nucleus?
Prokaryotic cells don't have a defined nucleus.
What does prokaryot mean?
before the nucleus A microscopic single-celled organism that has neither a distinct nucleus with a membrane nor other specialized organelles. Prokaryotes include the bacteria and cyanobacteria.
What are cells called when they dont have a nucleus?
Prokaryote. Means; " before the kernel. " Which is literal Greek for before the nucleus.
What does before nucleus mean?
"Before nucleus" typically refers to the time period in a cell's history when it did not have a defined nucleus. This is known as the prokaryotic phase, where genetic material is not enclosed by a membrane-bound nucleus, as seen in organisms like bacteria.
What origin does the name uranium come from?
Uranium name is derived from the name of the planet Uranus. Uranus was discovered a few years before the discovery of Klaproth in 1789 - a mineral containing uranium.
What was uranium used for before 1920?
For colouring glasses and ceramics.
What kind of cell that does not have a nucleus?
A prokaryote is a cell without a nucleus. The prefix Pro- means before, in this case, before the nucleus developed. A cell with a nucleus is a eukaryote.
