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What is a Fe2 electron configuration?

The Fe2+ ion does not contain any electrons in the 4s-orbital, instead ending after completely filling the 3d-orbital. According to UC Davis ChemWiki, the first number listed for each configuration stands for the energy level. The letter stands for the type of orbital. The second letter, typically written in superscript, indicates how many electrons are present in the orbital for the particular electron configuration expressed.

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What causes low gamma globulin?

Primary immunodeficiencies associated with the disorder include Bruton's X-linked hypogammaglobulinemia, common variable immune deficiency and Wiskott-Aldrich syndrome, while secondary hypogammaglobulinemia may be caused by pre-existing conditions, including renal failure, thyrotoxicosis, viral infections, immunosuppression or severe malnutrition, states Patient.co.uk. It is a condition that is easily missed during diagnosis because it presents with a bacterial infection, and it is generally organ-specific. Hypogammaglobulinemia is often linked to recurrent and intense infections.

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What does non-renewable energy mean ?

Carbon is the main element in fossil fuels; they were formed 300 to 360 million years ago. All fossil fuels are created through a similar process. Animals and plants that died were covered with sediment, rocks and seabed, and over time, the heat and pressure turned the remains into fossil fuels. There are huge underground pockets of coal, petroleum and natural gas all over the world. Non-renewable resources are easy to get to and relatively inexpensive to obtain as well, which makes them a valuable source of energy.\nBurning fossil fuels can be very harmful because the particles released pollu..

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What are some facts about the Arctic Lowlands and the Hudson Bay Lowlands?

The Hudson Bay Lowlands makes up nearly 25 percent of Ontario, and contains 20 percent of Ontario's forests. It also contains Ontario's largest protected area, Polar Bear Provincial Park, which is found on the coast to the north. It is the only Ontario ecozone affected by saltwater tides. The forest in the Hudson Bay Lowlands is home to polar bear, arctic fox, arctic hare, moose and woodland caribou. Millions of migratory birds build nests in this region every summer.\nThe Arctic Lowlands encompasses a wide range of geographical features, from low-lying plains to massive cliffs. Some..

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What is a Ruda plant?

The stalks of a Ruda plant are hard and possess a sandy color when broken. The layer underneath the exterior bark of a Ruda plant is soft, moist and light green, but the next layer is white, tough and dry and cannot be peeled off the plant. The Ruda plant is commonly used as a herbal seasoning and a flavoring for food and teas.

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What does carbon react with?

The most well-known reaction of carbon, to anything, is a diamond. Diamonds are the result of carbon reacting with air, pressure and heat, over long periods of time.When the air surrounding carbon is restricted during combustion, carbon monoxide is formed. When carbon reacts with water under pressure, water gas is formed. Water gas is a mixture of carbon monoxide, carbon dioxide, nitrogen and other elements.Carbon reacts with halogen at high temperatures. Together, the two form carbon tetrafluoride. Graphite, a form of carbon, also reacts with certain acids, such as nitric acid, to form mellit..

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How much does the average adult moose weigh?

Moose maintain their massive physique by consuming up to 50 pounds of food a day. As herbivores, their diet consists of flowering shrubs, aquatic plants and tree shoots. Their diet varies according to their migration patterns. The stomach of a moose is incredibly hardy, as it can hold up to 112 pounds of food at a time. Despite their incredible size, moose can run up to 35 miles per hour and are talented swimmers.

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Who was Hans Geiger?

Because it was developed while working with Walther Müller, the Geiger counter is sometimes referred to as the Geiger–Müller counter. It was used to confirm the existence of packets of energy. Before collaborating with Müller, Geiger built an earlier version of a particle counter and used it to identify alpha particles in the nucleus of a helium atom. Throughout his career, Geiger investigated many areas of nuclear physics, including cosmic rays, nuclear fission and artificial radioactivity.

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How can you find a complete guide to time and time zones?

Ireland, Portugal, and the Canary Islands share the same time as the United Kingdom. Hours are subtracted from GMT as time zones move west of the International Date Line. Noon in London, England, would be 7 a.m. in New York and 4 a.m. in Los Angeles. Time zones east of GMT add hours. Noon in London would be 1 p.m. in Paris, France, 3 p.m. in Baghdad, Iraq, and 9 p.m. in Tokyo, Japan.

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What is a converging circuit?

Diverging circuits are another type of neuronal circuit in the nervous system, and these comprise one presynaptic neuron that works to stimulate a number of postsynaptic neurons, essentially the opposite of a converging circuit. One example of this is when a single sensory signal arrives at the brain then gets reactions from several regions.\nAn oscillating circuit is also a neuronal circuit, and in this case, the circuit stimulates a single presynaptic neuron, causing a number of postsynaptic impulses. This helps the body perform actions that require coordinated muscle movements, such as brea..

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