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Liquid nitrogen (N2 at below −196 °C)
Liquid nitrogen (N2 at below −196 °C)
Daniel Rutherford, discoverer of nitrogen
Daniel Rutherford, discoverer of nitrogen
Molecular orbital diagram of dinitrogen molecule, N2. There are five bonding orbitals and two antibonding orbitals (marked with an asterisk; orbitals
Molecular orbital diagram of dinitrogen molecule, N2. There are five bonding orbitals and two antibonding orbitals (marked with an asterisk; orbitals involving the inner 1s electrons not shown), giving a total bond order of three.
Nitrogen trichloride
Nitrogen trichloride
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Estimated distribution of dark matter and dark energy in the universe. Only the fraction of the mass and energy in the universe labeled "atoms" is com
Estimated distribution of dark matter and dark energy in the universe. Only the fraction of the mass and energy in the universe labeled "atoms" is composed of chemical elements.
Portrait of Robert Boyle, c. 1740
Portrait of Robert Boyle, c. 1740
Title page of The Sceptical Chymist, published in 1661
Title page of The Sceptical Chymist, published in 1661
Portrait of Isaac Watts by John Shury, c. 1830
Portrait of Isaac Watts by John Shury, c. 1830