You can identify an unknown substance by measuring its density and comparing your result to a list of known densities. Density = mass/volume. Assume that you have to identify an unknown metal. You can determine the mass of the metal on a scale.

Answer. The density of elements going from left to right in the periodic table increase in density up to the element copper. Similarly the density of elements goes up as we move down the periodic table. The reason density increases in these two cases is the same; the atomic mass increases in both cases.

8.96 g/cc

Our science editor reports that the consensus in the medical community is that using aluminum cookware poses no health threat. In short: While untreated aluminum is not unsafe, it should not be used with acidic foods, which may ruin both the food and the cookware.

Great heat conductor: aluminum is one of the best metals for conducting heat, far better than stainless steel, in fact. Aluminum heats up quickly which allows you to get your cooking done faster and more efficiently. Heats evenly: not only does aluminum heat quickly and efficiently, it heats evenly across the surface.

Boiling water is safe. Aluminum oxidizes really quickly as soon as it touches air to form a protective layer. Some dangers may occur if you are scrapping the bottom of the cookware with a fork or other tool though.

stainless steel pot

titanium

The oxygen present in water reacts with aluminium to form a thin layer of aluminium oxide. This layer prevents aluminium from further reaction. As aluminium ions are harmful, water should not be stored in aluminium vessels overnight.

For most consumers the amount of aluminium absorbed into food from cooking utensils is unlikely to be harmful. Scientists have found increased levels of aluminium in the brain tissues of some patients suffering from Alzheimer’s disease, amyotrophic lateral sclerosis and Parkinsonism dementia.

In what way and in what form does aluminum react with water? Aluminum metal rapidly develops a thin layer of aluminum oxide of a few millimeters that prevents the metal from reacting with water. When this layer is corroded a reaction develops, releasing highly flammable hydrogen gas.

During cooking, aluminum dissolves most easily from worn or pitted pots and pans. The longer food is cooked or stored in aluminum, the greater the amount that gets into food. Leafy vegetables and acidic foods, such as tomatoes and citrus products, absorb the most aluminum.

Stainless steel cookware

‘, many rice cookers have an inner pot made of aluminum coated with non-stick Teflon. This non-stick coating is used for preventing rice from sticking to the pot. However, if non-stick Teflon is scratched, the pot can release dangerous chemicals. If teflon gets scratched, aluminum will leach out of the pot into food.

Here are some of our healthy cooking cookware recommendations or some best utensils for Indian cooking:

1. Stainless Steel. One of the most readily available and best vessels for cooking that you should consider is stainless steel.
2. Cast Iron.
3. Glass.
4. Brass.
5. Bronze.
6. Clay Pots.