Small Cell Lung Cancer Life Expectancy. In small cell lung cancer 'extensive stage', the average life expectancy is believed to be 9 to 12 months; and if the person does not opt for proper treatment, it can go down to 4 to 6 months.Advertisement.isten. In small cell lung cancer 'extensive stage', the average life expectancy is believed to be 9 to 12 months; and if the person does not opt for proper treatment, it can go down to 4 to 6 months.
A chemical element bonded to an identical chemical element is not a chemical compound since only one element, not two different elements, is involved. Examples are the diatomic molecule hydrogen (H 2) and the polyatomic molecule sulfur (S 8).
Atoms are the smallest. units of an element that can combine with other elements. Atoms of different elements. combine to form compounds. Baking soda (sodium bicarbonate), for example, is made of. sodium, hydrogen, carbon, and oxygen. Hydrogen gas, composed of two hydrogen atoms. is technically a compound. The chemical formula of a. compound lists all the elements that make up the compound and.