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Strontium
Strontium is a chemical element with the atomic number 38 and symbol Sr. This alkaline earth metal was used primarily in cathode ray tubes in early televisions.
496 Questions
Is strontium natural or synthetic?
Its primary ores are strontianite (SrCO3) and celestine/celestite (SrSO4).
How are the Isotopes of strontium alike?
They have the same number of protons (and of electrons) and so their chemical properties are the same.
What is the use of radionuclide 89 Strontium?
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.
What group on the periodic table does strontium belong to?
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
How many moles of strontium hydroxide are in 4.25 g of strontium hydroxide?
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"?
What is the formula for the compound strontium hydroxide?
The chemical formula for strontium oxide is SrO
What is the formula for barium and strontium?
The chemical formula for strontium bromate is Sr(BrO3)2.
What is the formula for strontium sulfite?
Sr(IO2)2 this salt is hypothetical, no iodite salts have been isolated.Chlorites are known and a bromite.
Read more: What_is_the_chemical_formula_for_aluminum_iodite
Read more: What_is_the_chemical_formula_for_aluminum_iodite
What is the chemical formula of strontium iodide?
Sr(NO3)2
Since strontium ion (Sr2+) has a charge of +2 and nitrate ion (NO3-) has a charge of -1,
there must be 2 nitrates to account for 1 strontium making the formula neutral
How could strontium become a noble gas?
Strontium can have a full electron shell noble gas state if it loses two of it's electrons.
0.0932 L
How many electrons does strontium have in its sublevel?
Strontium has 38 electrons. (Protons and electrons are the same)
What is the symbol for strontium?
There should be 42 isotopes! because if you count the amount of sr isotopes sr=strontium there is 42 if you count hose all sorry if i am wrong it is just an estimated hypothesis
How many atoms of iodine in strontium iodide?
Strontium and iodine would form ionic bonds in a compound with formula SrI2.
Are the properties of rubidium more similar to those of cesium or those of strontium?
Cesium. For non-transition elements such as rubidium, cesium, and strontium, the most chemically similar element to any other element is always one in the same column of the periodic table but in an adjacent row. Since strontium is not in the same column as rubidium but cesium is in the same column and an adjacent row, the answer follows. (This rule is sometimes true also for transition elements, but not always: For example, for elements in columns 8, 9, and 10, the most nearly chemically similar element is one in the same row and an adjacent column within this group, rather than one in the same column but an adjacent row.)
Strontium was discovered by Adam Crawford and the sexy Claire in 1790. He was an Irish chemist, But it was not until 1808, that Strontium was first isolated by Sir Humphry Davy, an English chemist.
What color does strontium chloride burn?
Strontium nitrate emits a bright red flame when it is burned.
Can strontium chloride dissolve in water?
Strontium hydroxides soluble at higher temperatures, where it forms a strong alkaline solution by completely dissociating in addition to dissolving (not the same thing).
