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Alkaline Earths
The Alkaline Earth Metals are the second group of the periodic table of the elements. They are highly reactive and share many properties with each other. In this category, there are ANY questions that have to do with the alkaline earths, or their elements: Beryllium, Magnesium, Calcium, Strontium, Barium, and Radium.
621 Questions
How does the formulas of the oxides formed by alkaline earth metals compare with those of lead?
When we look at the electron configuration we can make a comparison betwwen an alkine earth metal and lead oxide. Alkine earth when oxidised will become neutral and form a salt. When lead is oxidised the hydrogen atom is not included and will therefore not form a salt, this will result in the lead oxide not becoming a neutral atom but it will become an ion having a charge of -2
The thermal decomposition of beryllium carbonate?
Beryllium Carbonate --> Beryllium Oxide + Carbon Dioxide
BeCO3(s) --> BeO(s) + CO2(g)Why nitrogen forms compound with alkaline earth metal directly?
- why nitrogen form compound with alkaline earth metal
What are the most stable ions of the Alkaline earth metals?
They all have a one ,charged ion.All form +2 ion.
Why alkaline earth metals are soft?
Because they have a low force of attraction between their particles
What members are in the alkaline earth family?
Group 2 elements or alkaline earth metals are beryllium, magnesium, calcium, strontium, barium and radium
There transition, which is the same thing as magnetic
Compare and contrast the reaction of alkaline earth metals with their salts?
All alkaline earth metals and their salts are reactive and they have a blue-print that identifies them as an alkaline earth metal but metals exist as metals, and salts as salts, with different structural compounds.
Why do the alkali metal have lower ionization energies than the alkaline earth metals?
Alkali gases only have 1 electron needing to be removed to reach a stable noble gas configuration. Alkaline earths have two electrons. Alkali metals thus have the lower ionization energy of the two groups.
Are alkaline earth metals a good conductor of electricity?
Ok this question is a little tricky question. Let us answer this question based on concept of band theory. let us look at group 1 metals. Take the example of Na. It has only one valance electron. Hence the band diagram will be incomplete when sketched and due to this the nature of the element that is Na is metallic and also it exhibits good conductivity.
Now let us take the case of group 2 metals. Since the valence electron will be two and both of them will be filled, there will be an overlap of band. This will give it metallic nature but on the contrary since there will not be empty states it will be a poor conductor when compared to group 1.
Note: Group 2 metals exhibit conductivity but on a comparative scale with group 1 and 3 they are bad conductors.
What is the product formed when beryllium is heated with HCl?
Beryllium chloride is formed with evolution of hydrogen gas.
Be(s) + 2HCl(aq.) -------> BeCl2(aq.) + H2(g)
It is a Metaliod
Beryllium is in the second group. It is an alkaline earth metal.
What is meant by bombarding a thin sheet of beryllium by alpha particles?
"Bombarding a thin sheet of beryllium by alpha particles" generates a neutron flux.
In nuclear weapons design, it is sometimes necessary to produce a heavy flux of neutrons at just the right instant in time, relative to the assembly of super prompt critical mass.
It turns out that beryllium is a good producer of neutrons when bombarded with alpha. The alpha source is often polonium. One design has the two in sheets that do not interact with each other, due to separation with gold and nickel, until the initiating shock wave compresses them together, along with the mass of fissile material, usually plutonium.
What are the intermolecular forces in beryllium fluoride?
Disperson forces only because it is not a polar compound.
