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What element is located group 1 period 6 on the periodic table?
cromium
Name and symbol of an element which is used as a metal in household bulbs?
Tungsten, Atomic Symbol: W Cromium(Cr) also used in household bulbs.
What is an electronic configuration?
When the electronic configuration of any element is not the same as we expected, it is known as anomalous EC. For Eg Cromium, Copper and heavier d and f block elements.
Which metal has more then one oxidation state?
There are several such elements, iron being the most common one. Others include copper, manganese, lead, and cobalt. Nitrogen, chlorine, bromine, iodine, sulfur, and phosphorus also qualify, in their oxyanions.
What is CsSO4?
CsSO4 is the chemical formula for cesium sulfate, a compound composed of cesium cations (Cs+) and sulfate anions (SO4^2-). It is a white crystalline solid that is sparingly soluble in water.
What is CrI6 the chemical formula for?
CrI3.6H2O To name this compound, there certain facts we need to know first. The presence of water molecule hints us that this is a hydrated compound, meaning the chemical substance CrI3 is loosely held with 6 molecules of water and can easily be lost on heating. Now lets consider the stock system for naming of compounds. Cr is for Chromium and I is for Iodine. The subcript 3 indicates that the charge on Chromium was 3+ and the 6 takes the prefix "hexa". therefore Chromium(III) Iodide hexahydrate is the correct answer.
What element is used as the metal in domestic light bulbs?
tungsten <<>> Also along with the above, aluminium for the shell, steel for the filament holders, and in past years brass was used for the shell until manufactures found out it was cheaper to use aluminium for the job.
What is an anomalous electron configuration?
An anomalous electron configuration occurs when an atom has a different electron configuration than expected based on the normal rules. This can happen when the atom is in an excited state or there are exceptions to standard electron filling patterns.
What is hexavalent cromium?
A really nasty substance, causing poisoning in humans.The environmental activist Erin Brokovich came to fame because of her fight over this substance. At more than one site.It is commonly produced in industrial processes (including such simple things as welding of stainless steel) and may persist in consumer products. Such as tanned shoe leathers.It has the chemical symbol, Cr(VI). You'll need a moderate understanding of chemistry to follow the details of its mechanisms.
Does periodic table of elements has something to do with trace elements in human body?
Yes. It is very interesting to note that the elements with atomic number from 24 to 30 are very important trace elements in human body and probably for all animal and plant cells. So you have Cromium (24), Manganese (25), Iron (26), Cobalt (27), Nickel (28), Copper (29) and zinc (30) as trace elements. In this Iron is generally not considered as trace element. But then requirement of Iron per day is only 3 mg.
Describe the action of heat on ammonium dichromate?
When heated, ammonium dichromate undergoes a decomposition reaction, releasing nitrogen gas, water vapor, and chromium(III) oxide as products. This reaction is often used to create dramatic chemical volcano demonstrations due to the visual effect of the escaping gases creating a "fireworks" display.
Why does an electron occupy the 4s orbitals before the 3rd orbital?
Because the 4d electrons experience a lower effective charge from the nucleus at this point than the 5s electrons. Long story is that it has to do with the energy lost from spin-pairing. That means that it takes more energy to spin-pair the 5s electron than the energy difference between the 4d and 5s orbitals, so it will push the electron up to the 4d orbital since it requires slightly less energy. At the periods containing cromium and copper, this is where that effect takes place. You can demonstrate this to yourself by calculating the Z(eff) for the electrons using Slater's Rule, and you will see the change in Z(eff) for yourself.
