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neptunium (Np), radioactive chemical element of the actinoid series of the periodic table that was the first transuranium element to be artificially produced, atomic number 93. The element was named after the planet Neptune, which is the first planet beyond Uranus.neptunium (Np), radioactive chemical element of the actinoid series of the periodic table that was the first
Transuranium element – Wikipedia
to be artificially produced, atomic number 93. The element was named after the planet Neptune, which is the first planet beyond Uranus.
What’s Np on the periodic table?
Molybdenum Melting point 2896 K (2623 °C, 4753 °F) Boiling point 4912 K (4639 °C, 8382 °F) Density (near r.t. ) 10.28 g/cm 3 when liquid (at m.p. ) 9.33 g/cm 3.
Is Np an element?
93
What is the electron configuration for Np?
Rn 5f4 6d1 7s2.
What is the noble gas abbreviation for Np?
The atomic number of neptunium is 93. A neutral Np atom would have 93 electrons. It is in period 7, so the noble gas configuration would start with the noble gas in period 6, which is radon, Rn. The noble gas configuration for Np is [Rn]7s25f46d1 .
What is Molybdenum found in?
1778.
How do you identify molybdenum?
Molybdenum is a silvery-white metal that is ductile and highly resistant to corrosion. It has one of the highest melting points of all pure elements — only the elements tantalum and tungsten have higher melting points.
Is NP a metal nonmetal or metalloid?
The metals are to the left of the line (except for hydrogen, which is a nonmetal), the nonmetals are to the right of the line, and the elements immediately adjacent to the line are the metalloids. When elements combine to form compounds, there are two major types of bonding that can result.Metals, Metalloids, and Nonmetals. Th Pa U Np 4A Fm.
How is NP 237 produced?
Neptunium 237 is routinely produced in nuclear reactors as a result of the neutron irradiation of uranium 235 and uranium 238, the two most common constituents of nuclear fuel. It is also a decay product of americium 241. Large quantities of neptunium 237 are found in spent nuclear fuel.
Where is plutonium Found?
Plutonium generally isn’t found in nature. Trace elements of plutonium are found in naturally occurring uranium ores. Here, it is formed in a way similar to neptunium: by irradiation of natural uranium with neutrons followed by beta decay. Primarily, however, plutonium is a byproduct of the nuclear power industry.
What is the electron configuration of BK?
Rn 5f9 7s2.
What is the Valency of plutonium?
Valency of Plutonium is +2 ! Plutonium is a member of the actinide group in the periodic table. Plutonium atoms have 94 electrons and 94 protons with 2 valence electrons in the outer shell.
What element is Xe 6s24f145d6?
Electron Configuration Chart – Electron Configuration of all the elements in table chart Element Atomic Number Element Symbol Element Electron Configuration 76 Os [Xe] 4f14 5d6 6s2 77 Ir [Xe] 4f14 5d7 6s2 78 Pt [Xe] 4f14 5d9 6s1 79 Au [Xe] 4f14 5d10 6s1.
Why is it called neptunium?
Origin of the name Neptunium was named after the planet Neptune.
What color is neptunium?
Neptunium is a silver metal and is very reactive, with four different oxidation states. When it combines with other elements it occurs as different colored solutions (purple, yellow, green and pink).
Which is an isotope of 237 93 NP?
Neptunium Neptunium Melting point 912±3 K (639±3 °C, 1182±5 °F) Boiling point 4447 K (4174 °C, 7545 °F) (extrapolated).
What is Moly used for?
Most molybdenum is used to make alloys. It is used in steel alloys to increase strength, hardness, electrical conductivity and resistance to corrosion and wear. These ‘moly steel’ alloys are used in parts of engines. Other alloys are used in heating elements, drills and saw blades.
What is Cu Mo antagonism?
The biological antagonism between copper and molybdenum was discovered when cattle grazing pastures high in Mo were found to develop a syndrome charac- terized by diarrhoea, growth retardation, anaemia and achromotrichia, which could be prevented by administering Cu.
Where is molybdenum name from?
The name derives from the Greek molybdos for “lead”. The ancients used the term “lead” for any black mineral that leaves a mark on paper. Molybdenum was discovered by the Swedish pharmacist and chemist Carl Wilhelm Scheele in 1778. It was first isolated by the Swedish chemist Peter-Jacob Hjelm in 1781.
How do you get molybdenum?
You can get recommended amounts of molybdenum by eating a variety of foods, including the following: Legumes such as black-eyed peas and lima beans. Whole grains, rice, nuts, potatoes, bananas, and leafy vegetables. Dairy products, like milk, yogurt, and cheese. Beef, chicken, and eggs.
How is molybdenum extracted?
Molybdenum and copper-molybdenum porphyries are mined by open-pit or by underground methods. Once the ore has been crushed and ground, the metallic minerals are then separated from gangue minerals (or the molybdenum and copper from each other) by flotation processes, using a wide variety of reagents.
Is molybdenum a rare earth metal?
Molybdenum is not found free in nature. A relatively rare element, it is about as abundant as tungsten, which it resembles.molybdenum. atomic number 42 boiling point 5,560 °C (10,040 °F) specific gravity 10.2 at 20 °C (68 °F) oxidation states 0, +2, +3, +4, +5, +6 electron configuration [Kr]4d 5 5s 1.
Is Iodine a metal or nonmetal?
Physical and chemical properties. Iodine is a nonmetallic, nearly black solid at room temperature and has a glittering crystalline appearance.
Is Cl A metal?
Oxygen, carbon, sulfur and chlorine are examples of non-metal elements. Non-metals have properties in common.
Is antimony a metalloid?
Antimony is a chemical element with symbol Sb and atomic number 51. Classified as a metalloid, Antimony is a solid at room temperature.
What’s the half-life of uranium?
The half-life of uranium-238 is about 4.5 billion years, uranium-235 about 700 million years, and uranium-234 about 25 thousand years.
What type of radiation is Radium?
Most are due to gamma radiation, which can travel a long way through the air. Just being near high levels of radium is dangerous. Radium is a known cancer-causing substance. Exposure to high levels of radium can lead to higher chances of bone, liver and breast cancer.
What type of metal is plutonium?
Plutonium is a radioactive chemical element with the symbol Pu and atomic number 94. It is an actinide metal of silvery-gray appearance that tarnishes when exposed to air, and forms a dull coating when oxidized. The element normally exhibits six allotropes and four oxidation states.
What color is plutonium?
Plutonium is an extremely dense transuranic metal that resembles nickel when highly purified, being a shiny silvery colour, although its surface dulls rapidly due to oxidation. Sometimes, plutonium is yellow or olive green in colour.
What family does plutonium belong to?
On a periodic table you will find plutonium in period 7 belonging to the group called actinides. Elements (such as plutonium) in the actinide family are all radioactive.
What does plutonium smell like?
Despite its stinky reputation, Plutonium doesn’t have a foul smell. In fact, not many people have the opportunity to smell it. That’s because plutonium is so poisonous that if you inhaled it its radiation would have you dead, give you cancer, or both.
How do you make berkelium?
Berkelium is artificially produced, and has only been produced in relatively small amounts. It can be made through bombarding 241Am, an isotope of americium, with alpha particles using a cyclotron. This yields 243Bk and two free neurons. Numerous alloys and compounds of berkelium have been prepared and studied.
What is the freezing point of berkelium?
1,807°F (986°C).
What is the symbol of berkelium?
Bk
