Search by property
From Bioblast
This page provides a simple browsing interface for finding entities described by a property and a named value. Other available search interfaces include the page property search, and the ask query builder.
List of results
- Oxygen + ([[File:O2.jpg|left|60px|Dioxygen]] '''Mole … [[File:O2.jpg|left|60px|Dioxygen]]</br>'''Molecular oxygen''', O<sub>2</sub> or '''dioxygen''', has two atoms of oxygen, O, which is the chemical element with atomic number 8. The relative molecular mass of O<sub>2</sub>, ''M''<sub>r,O2</sub>, is 32 (or 31.9988). The element O has 8 protons, 8 neutrons and 8 electrons. In the figure, the two electrons in the first electron shell are not shown. Of the six electrons in the outer shell (blue bullets), one electron from each of the two atoms is shared in O<sub>2</sub> forming the covalent bond, and one electron in each atom is unpaired.sub>2</sub> forming the covalent bond, and one electron in each atom is unpaired.)