What is the formula for strontium iodide?
What is the formula for strontium iodide?
SrI2
Is strontium iodide soluble in water?
Strontium iodide (SrI2) is a salt of strontium and iodine. It is an ionic, water-soluble, and deliquescent compound that can be used in medicine as a substitute for potassium iodide .
Do iodine and strontium form an ionic compound?
Strontium and Iodine: Strontium iodide is an ionic compound that results from the combination of strontium and iodide ions.
What ion does strontium form?
In general, the chemistry of strontium is quite similar to that of calcium. In its compounds strontium has an exclusive oxidation state of +2, as the Sr2+ ion. The metal is an active reducing agent and readily reacts with halogens, oxygen, and sulfur to yield halides, oxide, and sulfide.
How does the body get rid of strontium?
Ca-APDA was effective in removing radioactive strontium from the body when administered intraperitoneally, and in inhibiting the radiostrontium intestinal absorption when administered orally.
How much does strontium cost?
| Name | Strontium |
|---|---|
| Normal Phase | Solid |
| Family | Alkaline Earth Metals |
| Period | 5 |
| Cost | $100 per 100 grams |
Is strontium expensive?
Strontium occurs in mineral deposits throughout the United States, though it hasn’t been mined here since the 1950s. The mineral strontium is extracted from celestite, which costs about $75 per ton. However, 25 grams of ultra-pure strontium cost over $2,000.
Why does strontium burn red?
The electrons “jump” from their ground state to a higher energy level. The color emitted by larger atoms is lower in energy than the light emitted by smaller atoms. So, for example, strontium (atomic number 38) produces a reddish color, while sodium (atomic number 11) produces a yellowish color.
What is the most expensive element on earth?
rhodium
Are truffles worth more than gold?
They must be foraged by special pigs, and they seem to be worth more every year. The price per gram for white truffles is $5, which means that a pound costs close to $2,000. One gram of gold is worth just under $34 per gram.
Which element is the rarest on earth?
element astatine
What is the rarest element in the universe?
Astatine
What is the most powerful thing in the universe?
Quasars inhabit the centers of active galaxies and are among the most luminous, powerful, and energetic objects known in the universe, emitting up to a thousand times the energy output of the Milky Way, which contains 200–400 billion stars.
What is the hardest thing to find in the world?
What is the hardest thing in the universe?
Nuclear pasta
Can God travel faster than light?
A few years ago, a group of physicists posited that particles called tachyons travelled above light speed. It seems, so far, that no object has been observed that can travel faster than the speed of light. This in itself does not say anything at all about God.
Can a shadow travel faster than light?
In principle, shadows can move faster than the speed of light. When a shadow is bigger than the object casting it, it moves at a greater distance but in the same amount of time. If the shadow is large enough, it could move across the surface faster than light.
Why does light travel so fast?
According to Einstein’s general theory of relativity, as an object moves faster, its mass increases, while its length contracts. At the speed of light, such an object has an infinite mass, while its length is 0 — an impossibility. Thus, no object can reach the speed of light, the theory goes.
Are Tachyons real?
Tachyons have never been found in experiments as real particles traveling through the vacuum, but we predict theoretically that tachyon-like objects exist as faster-than-light ‘quasiparticles’ moving through laser-like media.
Where does light travel the fastest?
Light waves do not need a medium in which to travel but sound waves do. Explain that unlike sound, light waves travel fastest through a vacuum and air, and slower through other materials such as glass or water.
Where do light waves travel the slowest?
The higher the index of refraction is, the slower the speed of light is. The indexes of refraction for diamond, air and glass are, respectively, 2.42, 1.00, and approximately 1.50, depending upon the composition of the glass. Light travels slowest in diamond.
Does light travel faster in water or glass?
The refractive index or n shows the relationship between c and the speed v when light travels through a material. The equation is n=c/v. In water, the refractive index is 1.3 and in glass, it is 1.5. Therefore, light travels faster through water, than it travels through glass.
How fast is the speed of dark?
54 meters per second