0
Beryllium
Beryllium is a chemical element with the atomic number 4 and the symbol Be. The main source of Beryllium is the stars, though it is relatively shortlived when synthesized. It is a relatively rare element in the universe as well as on Earth.
500 Questions
Why is beryllium Chloride soluble in Benzene?
Asked by Wiki User
Aluminum chloride (AlCl3) is soluble in benzene (to a slight extent) and in water because the aluminum-chlorine bond is covalent, but strongly polarized, due to the relatively high electronegativity of the aluminum atom (1.5 to 1.61 on Pauling scale). This causes aluminum valence electrons be shared between aluminum and chlorine atoms. Solid aluminum chloride is not bound together as tightly as is an ionic solid; therefore aluminum chloride molecules can leave the solid at a relatively low cost in energy.
The electron density at the aluminum atom is low, so the atom is attracted to any area of high electron density in a non-aqueous solvent. Thus there is a weak attraction of the aluminum atoms to the pi electron cloud in the benzene molecule, allowing a small amount of solubility. It is highly soluble in solvents with Lewis base character, such as nitrobenzene or ether. It is poorly soluble in methylene chloride or chloroform.
When anhydrous aluminum chloride is added to water, the aluminum chloride hydrolyzes, with the evolution of a large amount of heat and the formation of hydrochloric acid and aluminum hydroxide. Continued addition of aluminum chloride to this acidic mixture results in a clear solution of aluminum cations and chloride anions. The aluminum cation, having a large charge and a small radius, has a substantial heat of hydration.
The following is from an earlier version of this answer. I am not familiar with this area:
The molecule has a small radius, which allows it to fit between polar solvent molecules whose charges direct and "park" an AlCl3 molecule in place adjacent to a polar solvent molecule. Moreover, the solubility of the AlCl3 in polar solvents is enhanced by the aluminum ion's non valence electron pairs in the 2p6 orbitals being unshielded by the shift of the valence shell electrons toward the chlorine atoms.
However, my answer is rather superficial, and more thorough study on the subject is most recommended. Internet inquiry keywords could be [shielding aluminum covalent ionic polar aprotic soluble].
What is the formula for Beryllium Acetate?
Asked by Wiki User
Be4O(O2CCH3)6 is the chemical formula for beryllium acetate.
Can you touch beryllium safely?
Asked by Wiki User
No, is a very toxic element, also the compounds.
Hell no it would most certainly kill you
Noble gas configuration of beryllium?
Asked by Wiki User
The electron configuration of barium (atomic number 56) can be written three different ways:
- Full configuration: 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2
- Compressed (without all standard script numbers): 1s2 2s2p6 3s2p6d10 4s2p6d10 5s2p6 6s2
- Noble Gas form : [Xe] 6s2 (this works because [Xe] symbolizes the electronic configuration of Xenon, which is 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6. When added to 6s2, it is equivalent to the full electron configuration of Barium, when neutral.)
The electronic configuration for barium is [Xe] 6s^2 2, 8, 18, 18, 8, 2.
What is cost of beryllium copper?
Asked by Wiki User
The density of beryllium 1,850 kg/m³ or 1.85 g/cm³.
The SI density standard is kg/m³.
Is beryllium flammable or combustable?
Asked by Wiki User
Beryllium is in fireworks. Beryllium is used in fireworks to change the color of the effect to a white color.
Is beryllium solubility?
Asked by Wiki User
Beryllium metal is soluble in hydrochloric acid, sulphuric acid, sodium hydroxide, potassium hydroxide, etc.
How many electrons are in a beryllium ion?
Asked by Wiki User
The beryllium atom has 4 electrons.
As with all other elements, Beryllium atoms are most stable when they have a full outer shell of electrons. Since the neutral electron configuration of the beryllium element atom is 1s2 2s2 (total of 4 electrons) the atom either needs to pick up another six electrons, thereby becoming 1s2 2s2 2p6, or lose two electrons to become 1s2.
How many number of valance electrons in beryllium?
Asked by Wiki User
I might be wrong but:
I know that beryllium has two electrons total and the first ring can only fit two electrons so the number of valance electrons is most likely two. Please correct me if I'm wrong.
What element has the greatest abundance in the Earth's crust?
Asked by Wiki User
Oxygen is the most common and abundant element in the Earth's crust having 47% of the mass.
Is beryllium a solid at room temperature?
Asked by Wiki User
Barium is a solid at room temperature, and has a melting point of 727°C.
Barium at room temperature is explosively combustible, especially as powder, due to its extreme reactivity with oxygen in the air. Barium sulfate is used in medical radiology, and barium is used with yttrium in YBCO high-temperature superconducting compounds (yttrium barium copper oxide).
Is beryllium poisonous?
Asked by Wiki User
compounds containing beryllium are poisonous and it is toxic if you breathe in it's dust
How is beryllium use?
Asked by Wiki User
Beryllium copper alloys are useful for electrical contacts because they retain the spring force (contact clamping force) over time and temperature and are good conductors.
The downside of beryllium is that its toxic if ingested or inhaled, machining the alloys is usually limited to operations that don't generate dust. (pressure forming operations as opposed to milling, drilling, etc.)
A longer answer
Beryllium enjoys wide use as an alloying metal. Beryllium-copper is used to make electrical contacts, welding electrodes, non-sparking and non-magnetic tools, and also springs (for examples springs for Swiss watches, from the alloy glycodur). In its pure form, it is used as a nozzle in some rocket engines.
It is also found in nuclear applications in that pure, unalloyed state.
Also beryllium is the brazing metal for components from zirconium alloys (for example in the fabrication of nuclear fuel elements cladding from Zircaloy).
This light, strong metal makes for a great window to shoot X-rays and particles or particle streams through. It will interact with them only minimally because of its low atomic number. It's used in nuclear weapons where suitably shaped pieces hold the fissile material and, under the influence of high explosives, drive that material together to set off the device. They also act as a great neutron reflector in that application, too.
Beryllium is used also to make small neutron sources as: Ra-Be, Pu-Be, Am-Be, Po-Be; mirrors for astronomy and military armored vehicles; components for large particles accelerators, etc.
Beryllium is also used to make critical fasteners in specialized applications in the aeronautics and space industries. The metal is strong and hard, but its brittle nature must be accounted for, as well as its toxicity, which makes it a hazard, particularly when airborne, in a manufacturing facility. A link can be found below, and it will lead the curious investigator to the Wikipedia post on this interesting metal.
Beryllium compounds also have many interesting applications.
What products can be made from beryllium?
Asked by Wiki User
It is used as components for missiles and rockets. Windows for X-ray tubes, brazing material for zirconium alloys, beryllium bronzes, beryllium alloys for welding, nuclear applications as reflector, beryllium-copper alloys for transformers, Ra (Am, Pu, Po)-Be source of neutrons, alloys for aviation industry, alloys for missiles, alloy for watches components (glucydur), nuclear weapons and many other uses. Beryllium oxide: electric insulator but thermal conductor, ceramics for high temperatures, nuclear applications as neutrons reflector, etc. Beryllium fluoride was used in the Molten Salt Reactor Experiment. Beryllium chloride is a catalyst in organic chemistry, beryllium nitride is a ceramic hard and for high temperatures. Etc.
What is the bond angle of beryllium hydride?
Asked by Wiki User
About this type of question: My answer is that beryllium is small in size. So, the charge density (charge/radius) is extremely high. So, the force of attraction between the electrons in orbitals and proton in nucleus is very strong. When beryllium is encountered with the other elements (i.e. chlorine), the electrons cannot loss to environment(due to strong force of attraction), but the beryllium will be polarised to become positively charge and hence attract the electron from other elements to form the covalent compound (BeCl2 which is Cl-Be-Cl). So the beryllium hydride is a polar covalently bonded compound.
What is the electron arrangement of a beryllium ion?
Asked by Wiki User
Electronic configuration of beryllium: 1s2.2s2.
Family name of beryllium?
Asked by Wiki User
the family of beryllium consists of following members:-beryllium magnesium calcium strontiumbarium radium
