Photoelectric threshold is a maximum length of electromagnetic wave which can still cause the photoelectric effect.
Psychoactive drugs are natural (mescaline) or synthetic substances (LSD) which take effect on central nervous system causing euphoria, and by lengthened use they also cause addiction, gradually destroying the nervous system.
Superconductivity is the phenomenon in which certain metals, alloys, and compounds below a certain temperature, the transition point (Tc), lose electrical resistance and magnetic permeability, i.e. have infinite electrical conductivity (Meissner effect and Josephson effect).
Diffraction is the ability of a wave to bend around the edges of obstacles or holes. The effect is most noticeable when the obstacle or hole is comparable to the size of the wavelength
Dissociation is the process by which a chemical combination breaks up into simpler constituents as a result of either added energy (dissociated by heat), or the effect of a solvent on a dissolved polar compound (electrolytic dissociation). It may occur in the gaseous, solid, or liquid state, or in a solution.
An example of dissociation is the reversible reaction of hydrogen iodide at high temperatures
The term dissociation is also applied to ionisation reactions of acids and bases in water. For example
which is often regarded as a straightforward dissociation into ions
Dropping mercury electrode (DME) is a working electrode arrangement for polarography in which mercury continuously drops from a reservoir through a capillary tube (internal diameter 0.03 - 0.05 mm) into the solution. The optimum interval between drops for most analyses is between 2 and 5 s. The unique advantage to the use of the DME is that the constant renewal of the electrode surface, exposed to the test solution, eliminates the effects of electrode poisoning.
The term toxicity is very widely used in the safety context. It is used in two contrasting senses: to denote the capacity to cause harm to a living organism, and to indicate the adverse effects caused by a chemical.
Toxicology is a science which studies all kinds of poisons and their effects on live organisms.
Pieter Zeeman (1865-1943) was a Dutch physicist who discovered the splitting of the spectral lines of a substance when placed in a magnetic field (known as the Zeeman effect). In 1902, Zeeman and Lorentz were jointly awarded the Nobel Prize in Physics, for their, extraordinary service they rendered by their researches into the influence of magnetism upon radiation phenomenon.
Generalic, Eni. "Greenhouse effect." Croatian-English Chemistry Dictionary & Glossary. 29 June 2022. KTF-Split. {Date of access}. <https://glossary.periodni.com>.
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