Carbon Hydrogen Oxygen Nitrogen Phosphorous Sulphur Chlorine Fluorine Iodine Boron Calcium Sodium Potassium Silicon Magnesium Iron Manganese Aluminium Zinc Copper Molybdenum Selenium Cobalt Chromium Vanadium Nickel Cadmium Tin and Arsenic (29 in all) have all been found in living organisms and identified as forming a part of their normal life cycles.
In addition to the above, Tungsten has also been found within certain types of bacteria. The presence of Arsenic as a metabolite within some types of bacteria was only discovered in year 2010, but it does not appear to be vital and is used as an alternative to Phosphorous.
Fr stands for Francium. It is found in uranium meinerals and the most unstable of the first 101 elements. It is very rare and exists in extremely low amounts on the entire planet--about 20 grams.
what are the names of metal
When you consider the composition of living and non living things, both can be broken down into what comprises them. If one considers non-living matter, then "particle" may be used to describe the smallest unit. As knowledge advances, a "particle" by definition has evolved i.e., quarks being the smallest "particle" of an atom whereas for years it was thought that the atom was the smallest unit of matter. Conversely, the cell is considered the smallest unit of organic (living) matter The only major difference between them is that a cell is the smallest particle of a living object and a molecule (made up of atoms) is the smallest unit of a nonliving object.
The validity of the periodic table of elements, which was originally devised by Mendeleev, has been confirmed by a vast body of chemical research. It would not be an exaggeration to say that everything in the science of chemistry conforms to Mendeleev's theory.
Amongst other things, most of modern physics other than Maxwell's equations.
There are 20 different amino acids that make up all the proteins found in living things.
There are 20 naturally occurring amino acids found in living things.
20
20% gold, 20% silver, 20% platnium, 20% aluminium and finally 20% copper.
All living things use the same set of 20 amino acids to make proteins. These amino acids are the building blocks of proteins and are linked together in different sequences to form the vast array of proteins found in nature.
There are twenty amino acids, of which around half are made in the body. The other 10 are called 'essential amino acids', because they cannot be formed in our cells, so we must take them in, in our diet.
Various animals such as rabbits, foxes, and certain breeds of domestic cats can reach lengths of around 20 inches, depending on the species and individual variation. Additionally, some species of snakes and fish can also grow up to 20 inches in length.
metals,gas,
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No, 3-12 elements on the periodic table (group 3 to group 12) are transition metals, not representative elements. Representative elements are found in groups 1 and 2, and 13 to 18 on the periodic table.
The first 20 elements of the periodic table are made up of a variety of elements including hydrogen, helium, lithium, beryllium, boron, carbon, nitrogen, oxygen, fluorine, neon, sodium, magnesium, aluminum, silicon, phosphorus, sulfur, chlorine, argon, potassium, and calcium.
Living with the Living was created on -20-10-09.