Calcium,barium and radium are mostly similar to strontium by properties, because these elements have the same structure of external electron orbits ( outer-shell orbitals 2s).Because of the similarity of the outer shell orbitals these elements are placed in the same group.
Magnesium and beryllium have also the same structure of outer shell orbitals like strontium(2s)but they are more similar to zinc or aluminium than to strontium.
It is because Barium and Strontium are both elements of same group and have same outer shell configuration of ns2
where n is the principal quantum number or shell number.
Furthermore, they both are bonded to same element.
Hence, the formula of Barium and Strontium Chloride are similar.
NO!!!!
Each element has it own ground state electron configuration.
Rubidium is [Kr] 5s1
Strontium is [Kr] 5s2.
Notice that strontium has one MORE electron than Rubidium.
The symbol [Kr] is shorthand for the full electron configuration of krypton.
The formula unit for the ionic compound made of strontium and sulfur is SrS, called strontium sulfide.
The bipositive ion of strontium takes the electron configuration of xenon.
You wouldn't expect strontium to gain electrons in a chemical change.
in my high chemical equipment, in my science lab i have found the correct answer and the highly best answer is gas!
Its primary ores are strontianite (SrCO3) and celestine/celestite (SrSO4).
They have the same number of protons (and of electrons) and so their chemical properties are the same.
There are many uses of strontium that nobody would think of. Strontium is used in the fire that is in flares; the kind of flares police men use to tell people to watch out. It is also used for fireworks. Some types of strontium are used to make the glass on a color television tube. It is sometimes used in optical materials such as glasses or telescopes. If a doctor puts a little bit of strontium in a person's body, it is taken up by the bone tissue. Then the doctor uses radiation detectors to locate the radioactive strontium to assess the patents abnormalities.
Strontium is an alkaline earth metal; group 2 and period 5 in the periodic table of Mendeleev.
Strontium is an element. Symbol Sr.
See the link below for further information
You must first find the molar mass of the element or compound. Use the periodic table (see the link to the left of the answer). If the chemical is an element, just read off the atomic mass from the periodic table. If it is a compound, you must know the molecular formula, and then you find the total molar mass of the compound by adding up the atomic masses of each atom in the compound. The unit of the molar mass will be in grams per moles (g/mole)
Once you have the molar mass, you can easily convert from grams to moles, and also from moles to grams.
Number of moles = (# of grams) ÷ (molar mass)
Number of grams = (# of moles) × (molar mass)
Here are a two examples:
Example 1:
How many moles are in 5 grams of O2?
The molar mass of O2 = 16.00 g/mole x 2 (for 2 atoms of oxygen) or 32.00 g/mole.
5 g of O2 ÷ (32 g/mole) = 0.15625 moles
Example 2:
How many grams does 4 moles of NH3 weigh?
The molar mass of NH3 = 14.01 + (3 × 1.01) = 17.04 g/mole
4 moles × 17.04 g/mole = 68.16 grams
Grams in a MoleIn chemistry, a mole is considered to be Avogadro's number (6.02 × 1023) of molecules (or anything) of a substance - so depending on the density of the substance, the mass of that amount of the substance could vary widely.One mole of hydrogen, for example, would have a different mass than one mole of lead. The question compares two different measurements of a given substance, rather like asking "how heavy is a gallon?". The question becomes "A gallon of what"?
The chemical formula for strontium oxide is SrO
The chemical formula for strontium bromate is Sr(BrO3)2.
Sr(IO2)2 this salt is hypothetical, no iodite salts have been isolated.Chlorites are known and a bromite.
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