Atomic Number 8 (Noun)
Meaning
A nonmetallic bivalent element that is normally a colorless odorless tasteless nonflammable diatomic gas; constitutes 21 percent of the atmosphere by volume; the most abundant element in the earth's crust.
Classification
Nouns denoting substances.
Examples
- Oxygen's atomic number is 8 and is the third most abundant element in the universe by mass.
- The atomic number 8 element is essential to the combustion process and is necessary to support human and animal life forms.
- Atomic number 8 has a high reactivity, and participates readily in the formation of compounds with nearly all other elements.
- In a compound, the atomic number 8 atom forms a double covalent bond with the atom of another element.
- At room temperature and pressure, the atomic number 8 is a colorless, odorless, and tasteless gas, that supports combustion and human respiration.