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2. Salt (chemistry) - Wikipedia

   en.wikipedia.org/wiki/Salt_(chemistry)

   In chemistry, a salt or ionic compound is a chemical compound consisting of an assembly of positively charged ions (cations) and negatively charged ions (anions), [ 1 ] which results in a compound with no net electric charge (electrically neutral). The constituent ions are held together by electrostatic forces termed ionic bonds.

3. Electronegativity - Wikipedia

   en.wikipedia.org/wiki/Electronegativity

   Electronegativity, symbolized as χ, is the tendency for an atom of a given chemical element to attract shared electrons (or electron density) when forming a chemical bond. [1] An atom's electronegativity is affected by both its atomic number and the distance at which its valence electrons reside from the charged nucleus. The higher the ...

4. Octet rule - Wikipedia

   en.wikipedia.org/wiki/Octet_rule

   The octet rule is a chemical rule of thumb that reflects the theory that main-group elements tend to bond in such a way that each atom has eight electrons in its valence shell, giving it the same electronic configuration as a noble gas. The rule is especially applicable to carbon, nitrogen, oxygen, and the halogens; although more generally the ...

5. Charge-transfer complex - Wikipedia

   en.wikipedia.org/wiki/Charge-transfer_complex

   Structure of one part of one stack of the charge-transfer complex between pyrene and 1,3,5-trinitrobenzene. [ 1 ] In chemistry, charge-transfer (CT) complex, or electron donor-acceptor complex, describes a type of supramolecular assembly of two or more molecules or ions. The assembly consists of two molecules that self-attract through ...

6. List of chemistry mnemonics - Wikipedia

   en.wikipedia.org/wiki/List_of_chemistry_mnemonics

   The four most common elements in living organisms – carbon, hydrogen, oxygen, and nitrogen – may be remembered with the acronym CHON. To remember the elements necessary for agriculture; C arbon, H ydrogen, Ca lcium, Iron (Fe), Magnesium (Mg), Manganese (Mn), Copper (Cu), Mo lybdenum, Chlorine (Cl), B oron.

7. Lewis structure - Wikipedia

   en.wikipedia.org/wiki/Lewis_structure

   Lewis structures show each atom and its position in the structure of the molecule using its chemical symbol. Lines are drawn between atoms that are bonded to one another (pairs of dots can be used instead of lines). Excess electrons that form lone pairs are represented as pairs of dots, and are placed next to the atoms.

8. Bent's rule - Wikipedia

   en.wikipedia.org/wiki/Bent's_rule

   Bent's rule provides an additional level of accuracy to valence bond theory. Valence bond theory proposes that covalent bonds consist of two electrons lying in overlapping, usually hybridised, atomic orbitals from two bonding atoms. The assumption that a covalent bond is a linear combination of atomic orbitals of just the two bonding atoms is ...

9. Table of standard reduction potentials for half-reactions ...

   en.wikipedia.org/wiki/Table_of_standard...

   The values below are standard apparent reduction potentials (E°') for electro-biochemical half-reactions measured at 25 °C, 1 atmosphere and a pH of 7 in aqueous solution. [ 1 ][ 2 ] The actual physiological potential depends on the ratio of the reduced (Red) and oxidized (Ox) forms according to the Nernst equation and the thermal voltage.