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.
Granite
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.
One group of living things that are 20 inches are cats. Another group of living things in this category would be ferrets.
20
20% gold, 20% silver, 20% platnium, 20% aluminium and finally 20% copper.
The first twenty elements are made up f different things
All living things use 20 amino acids to make proteins.
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.
metals,gas,
Nana, living museum Koko
There are 118 elements contemporarily found on the periodical table of elements. Some tables show Technetium, Radon, Neptunium, Plutonium, Americium, Curium, Berkelium, and Californium as naturally occuring elements. This is because some scientists claim to have found these elements in samples of Uranium. Honestly, I cannot inform you on how many there are, but I can tell you there are 29-20 man-made elements.
Living with the Living was created on -20-10-09.