CHEMISTRY GLOSSARY
carboxylate group → karboksilna skupina
Carboxylate group (-COOH) is a functional group which is common to all carboxylic acids.
cgs system of units → cgs sustav jedinica
Cgs system of units is a system of units based upon the centimetre, gram, and second. The International System (SI) has supplanted the cgs system.
crystal system → kristalni sustav
Crystal system is a method of classifying crystalline substances on the basis of their unit cell. There are seven unique crystal systems. The simplest and most symmetric, the cubic (or isometric) system, has the symmetry of a cube. The other six systems, in order of decreasing symmetry, are hexagonal, tetragonal, rhombohedral (also known as trigonal), orthorhombic, monoclinic and triclinic.
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Crystal system
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Unit-cell
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Conditions on unit-cell edges and angles |
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cubic |
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a=b=c α=β=γ=90° |
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hexagonal |
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a≠c α=γ=90° β=120° |
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tetragonal |
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a=b≠c α=β=γ=90° |
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rhombohedral |
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a=b=c α=β=γ≠90° |
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orthorhombic |
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a≠b≠c α=β=γ=90° |
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monoclinic |
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a≠b≠c α=γ=90°≠β |
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triclinic |
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a≠b≠c α≠β≠γ≠90° |
Gaussian system of units → Gaussov sustav jedinica
Gaussian system of units is a hybrid system used in electromagnetic theory, which combines features of both the electrostatic cgs subsystem (esu) and electromagnetic cgs subsystem (emu). With three base units, it uses em units in magnetism and es units in electrostatics. This involves using the constant c (the velocity of light in vacuum) to interrelate these sets of units.
cubic crystal system → kubični kristalni sustav
Cubic crystal system is also known as the isometric system. The Isometric crystal system characterizes itself by its three equivalent crystallographic axes perpendicular to each other.
a = b = c
α = β = γ = 90°
glycosyl group → glikozidna skupina
The structure obtained by removing the hydroxy group from the hemiacetal function of a monosaccharide.
open system → otvoreni sustav
Open system is a system which can exchange matter and energy with the environment.
system → sustav
System is the region under consideration, as distinguished from the rest of the universe (the environment). Systems may be separated from environments by boundaries that prevent the transfer of mass (a closed system), of heat (an adiabatic system), or of any energy (an isolated system). Systems that exchange mass with the environment are open systems.
systematic error → sustavna pogreška
Systematic errors have an identifiable cause and affect the accuracy of results.
hexagonal crystal system → heksagonski kristalni sustav
Hexagonal crystal system is based on four crystallographic axes. The system of crystallographic axes of the hexagonal crystal system consists of three equivalent horizontal (equatorial) axes of which the positive ends make an angle of 120°. These axes are sometimes denoted as a, b and d axes. The fourth axis is (c) is perpendicular to and shorter or longer than the other three.
Citing this page:
Generalic, Eni. "Skupine periodnog sustava." Croatian-English Chemistry Dictionary & Glossary. 29 June 2022. KTF-Split. {Date of access}. <https://glossary.periodni.com>.
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