PD+5A+-+Carbon+Cycle

CARBON CYCLE Carbon is the basis of all organic molecules. It is also one of the most abundant elements in the universe. > > **Name: **Carbon > **Symbol: C > Atomic Number: 6 > Atomic Mass: 12.0107 amu > Melting Point: 3500.0 °C (3773.15 K, 6332.0 °F) > Boiling Point: 4827.0 °C (5100.15 K, 8720.6 °F) > Number of Protons/Electrons: 6 > Number of Neutrons: 6 > Classification:** [|**Non-metal**] > **Crystal Structure: Hexagonal > Density @ 293 K: 2.62 g/cm3 > Color: May be black** When inhaled, CO attaches itself to hemoglobin, a protein in the blood that carries oxygen. CO poisoning limits the amount of oxygen reaching the cells.If the brain is starved of oxygen, a person can die.
 *  Carbon is a group of 14 elements and distributed very widely
 * ** Date of Discovery: ** Known to the ancients   
 * Carbon is the basis of all organic molecules. It is also one of the most abundant elements in the universe.
 * Animal studies indicate that these long and very thin carbon molecules could cause a cancer called mesothelioma, which occurs in the lining of the lungs.
 *  Carbon monoxide is an odorless, colorless and toxic gas. Because it is impossible to see, taste or smell the toxic fumes, CO can kill you before you are aware it is in your home.
 * At lower levels of exposure, CO causes mild effects that are often mistaken for the flu.
 * These symptoms include headaches, dizziness, disorientation, nausea and fatigue. The effects of CO exposure can vary greatly from person to person depending on age, overall health and the concentration and length of exposure.
 * Acute effects are due to the formation of carboxyhemoglobin in the blood, which inhibits oxygen intake. At moderate concentrations, angina, impaired vision, and reduced brain function may result. At higher concentrations, CO exposure can be fatal.