Sentence examples for the element carbon from inspiring English sources

In the absence of a valid proxy, our knowledge of possible fluctuations in the Earth's O2 reserves is based on inferences made from isotope ratio measurements conducted on the element carbon contained in ancient limestones (calcium carbonate) and on the element sulfur contained in ancient evaporites (calcium sulfate).

The element carbon, for example, is found to have typical valences of 2 and 4.

For example, the element carbon (C) occurs in nature in two different polymorphic forms, depending on the external (pressure and temperature) conditions.

Those questions traditionally have been addressed by separate "sub-worlds" of researchers, Socolow added, "and we are pulling them together". The unifying concern of the research is the element carbon, one of the main ingredients of fossil fuels.

The element carbon, for example, is found to have typical valences of 2 and 4. The early Greeks, most notably Democritus, argued that matter is composed of fundamental particles called atoms.

The element carbon, for example, is found to have typical valences of 2 and 4. The chemists of the 19th century established a large body of empirical information leading to the realization that patterns exist in the types of compounds that elements can form.

Fluorocarbon, compound composed of the elements carbon and fluorine; see halocarbon.

These relatively simple molecules contain the elements carbon, hydrogen, and oxygen; some also contain nitrogen, sulfur, or cobalt.

This protoplasm consisted of the elements carbon, hydrogen, oxygen and nitrogen, and constituted the chemical basis of all living matter.

The elements carbon, hydrogen, nitrogen, oxygen, phosphorus, and sulfur, when combined as proteins, lipids, carbohydrates, and nucleic acids, provide the building blocks, the fuel, and the direction for the creation of life.

Methane, for example, which is formed from the elements carbon and hydrogen in the ratio four hydrogen atoms for each carbon atom, is known to contain distinct CH4 molecules.