General chemistry

General chemistry

Industry: Chemistry

Add a new term

Contributors in General chemistry

Become a Contributors

General chemistry

Valence bond

Chemistry; General chemistry

In the valence bond theory , a valence bond is a chemical bond formed by overlap of half-filled atomic orbitals on two different atoms.

Complex ion

Chemistry; General chemistry

An ion formed by combination of simpler ions or molecules; for example, Co2+ combines with six molecules of water to form the complex ion Co(H2O)62+.

Conformers

Chemistry; General chemistry

Molecular arrangements that differ only by rotations around single bonds. For example, the "boat" and "chair" forms of cyclohexane are conformers.

Second ionisation energy

Chemistry; General chemistry

The energy needed to remove an electron from an isolated +1 ion. The third ionisation energy would be the energy required to remove an electron from an isolated +2 ion, and so on.

A tiny, incredibly dense positively charged mass at the heart of the atom. The nucleus is composed of protons and neutrons (and other particles). It contains almost all of the mass of the atom but ...

Free energy

Chemistry; General chemistry

Energy that is actually available to do useful work. A decrease in free energy accompanies any spontaneous process . Free energy does not change for systems that are at equilibrium .