Cadmium, lead, and Mercury are toxic heavy metals; arsenic is a toxic semi-metal. All of these are extremely dangerous to human health.
Arsenic, for example.
Boyle demonstrated this relationship using a U-shaped tube sealed at one end. The tube had mercury added to it so that a volume of gas was trapped at the sealed end of the tube; the gas thus was compressed by atmospheric pressure and the pressure from the column of mercury. Boyle poured mercury into the open end of the U-tube and measured the change in volume of the trapped gas as the applied pressure increased.
Liquid mercury is an element, therefor cannot be made of any other compound. Its atomic number is 80 and its mass number is 200.59. It is one of only 2 elements that is liquid at room temperature (the other one is bromine). It is commonly used in thermometers. It is poisonous and can be ingested when eating food such as fish (but is not at high enough levels to cause major harm when ingested as long as eating that kind of food is restrained).
I'm not sure if this answer is the kind of answer you're looking for, but basically, you would have to use a much larger amount of water than mercury to get an accurate reading of atmospheric pressure. This is because water is not nearly as dense as mercury, so it takes much less atmospheric pressure to raise the water up the tube in a water barometer. This results in water rising much more easily than mercury. Obviously, then, a water barometer would have to be much larger than a mercury one. Since mercury is more dense than water, mercury barometers are much smaller. So, if you put water in a mercury barometer instead of mercury, the reading you get would be way too high.Air pressure at sea level is about 14.7 pounds per square inch (psi) and can push a column of water almost 33 feet high, but it can only push mercury 30 inches high. Roughly, ever inch of mercury equals a foot of water.
Generally, argon or krypton.Argon , neon ,Argon is sometimes used in incandescent lights.Answer:Fluorescent bulbs contain mercury vapor so do mercury vapor lights, sodium vapor lights contain sodium vapor once they are hot, "neon" lights contain neon and a number of other gases depending on the color desired.Argon or nitrogenIn incandescent light bulbs (the regular kind) contain an inert gas, probably Argon. Sometimes there is no gas at all and a vacuum protects the filament.In Florescent bulbs the tubes are filled with low pressure mercury vapor along with an inert gas such as argon, xenon, neon, or krypton.argon
Mercury is a metal that is liquid at room temperature. It is also poisonous.
Arsenic, for example.
A lot of substances are not air pollutant. You must specify which kind of substance do you refer as a probable air pollutant.
carbon monoxide
Arsenic
Ozone gas is kind of poison. It acts as a pollutant too.
Mercury is a kind of liquid. Because it is a kind of liquid, we cannot figure out the shape and size of Mercury.
It is one kind of bone disease caused due to cadmium toxicity.
mercury paper
Kind of vague, but if you're looking for a good time, arsenic is the answer.
It is 0% Mercury not 0 Mercury. It means the battery contains no Mercury.
Lithium Fluorine Sodium Potassium Copper Magnesium Calcium Zinc Phosphorus Chromium Sulphur Selenium Molybdenum Chlorine Iodine Manganese Beryllium Strontium Barium Cadium Mercury Boron Aluminium Vanadium Arsenic Bromine NickelLithium Fluorine Silver Sodium Potassium Copper Magnesium Calcium Zinc Phosphorus Chromium Sulphur Selenium Molybdenum Chlorine Iodine Manganese Beryllium I Strontium Barium Cadium Mercury Boron Aluminium Vanadium Arsenic Bromine Nickel