Lead (Pb) is a very heavy metal, but like gold, lead is not magnetic. By moving a very strong magnet past a piece lead can actually cause the lead to move. The video below shows that lead does interaction with the magnet, other metals, such as Aluminum, Brass, and, Copper have a more visible interaction.

Explain to the students that there is only one kind of metal that magnets stick to, namely iron. Sometimes it is mixed with other metals to make steel, therefore steel also sticks to a magnet. Therefore, if a magnet sticks to an object, the object is iron or steel.

Not all metals are magnetic. Actually, it depends on what you mean by the word “magnetic”. There are four basic types of magnetism that a material can have: superconducting, diamagnetic, paramagnetic, and lastly ferromagnetic.

Mercury is a heavy, silver-white element that is liquid at room temperature. While the clumps of soil break into particles smaller than sand, the copper pellets, containing a small amount of magnetic metal, attract the mercury from the particles.

When heated mercury reacts oxygen in the air to form mercury oxide, which undergoes decomposition upot heating to higher temperature. Its vapour can produce harmful effects on the nervous, digestive and immune systems, lungs and kidenies, and may be fatal.

Mercury is non-combustible. The agent itself does not burn, but it may react upon heating to produce corrosive and/or toxic fumes. Fire will produce irritating, corrosive, and/or toxic gases. Use an extinguishing agent suitable for the type of surrounding fire.

No, this has been banned by federal law in all 50 states.

“Drinking mercury has a laxative effect,” explains the toxicologist Gebel. “Its density cleans the intestine wonderfully.” The effect is completely different when mercury is inhaled. As a vapor, the mercury is inhaled as individual atoms and quickly absorbed by the lungs where its poisonous effects begin to develop.

If you have mercury poisoning with a very high level of mercury in your blood, your doctor will probably recommend chelation therapy. This method involves using medications, called chelators, that bind to mercury in your body and help it to exit your system. Chelators can be taken as a pill or injected.

The inhalation of elemental mercury vapours can cause neurological and behavioural disorders, such as tremors, emotional instability, insomnia, memory loss, neuromuscular changes and headaches. They can also harm the kidneys and thyroid. High exposures have also led to deaths.

Approximately half of a dental amalgam filling is liquid mercury and the other half is a powdered alloy of silver, tin, and copper. Mercury is used to bind the alloy particles together into a strong, durable, and solid filling.

White-colored fillings are mercury free fillings. The tooth-colored fillings are made of a composite mixture of glass and plastic. These fillings are not only less toxic than silver amalgam fillings; they’re much more pleasing to the eye. Mercury free fillings can be used on both the front and back teeth.

July 28, 2009 — The mercury used in dental amalgam fillings is not at a level high enough to cause harm in patients, according to the FDA, which today issued its final regulation on the controversial tooth filling material.