Covalent bond resulting from the sharing of two electrons (one pair) between two atoms.
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Dimer
Molecule formed by combination of two smaller (identical) molecules.
Nonelectrolyte
A substance whose aqueous solutions do not conduct electricity.
Inert s-pair Effect
Characteristic of the post-transition minerals, tendency of the outermost s electrons to remain nonionized or un shared in compounds.
Electron Deficient Compounds
Compounds that contain at least one atom (other than H) that shares fewer than eight electrons.
Metallurgy
Refers to the overall processes by which metals are extracted from ores.
How to keep flowers in a vase for long time
The best gift for a woman, as you know, is a beautiful bouquet of flowers. But the cut flowers at home quite quickly wither. But your favorite roses or tulips can keep their freshness if you use our advice. Chemistry and various chemical elements will help us in this difficult matter!
Oxidation
An algebraic increase in the oxidation number, may correspond to a loss of electrons.
Half-Life
The time required for half of a reactant to be converted into product(s). The time required for half of a given sample to undergo radioactive decay.
First Law of Thermodynamics
The total amount of energy in the universe is constant (also known as the Law of Conservation of Energy) energy is neither created nor destroyed in ordinary chemical reactions and physical changes.
Diamagnetism
Weak repulsion by a magnetic field.
