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2105.
Kilogram per cubic metre: Kilogram per cubic metre is the SI measure of density and is represented as kg/m3, where kg stands for kilogram and m3 stands for cubic metre. The kilogram was originally based on the mass of one litr
http://explorer.cekli.com/ppt/kilogram-per-cubic-metre
2106.
Boiling point: The boiling point of an element or a substance is the temperature at which the vapor pressure of the liquid equals the environmental pressure surrounding the liquid.[1][2] A liquid in a vacuum environ
http://explorer.cekli.com/ppt/boiling-point
2107.
Enthalpy of fusion: The standard enthalpy of fusion (symbol: ?Hfus), also known as the heat of fusion or specific melting heat, is the amount of thermal energy which must be absorbed or evolved for 1 mole of a substance
http://explorer.cekli.com/ppt/enthalpy-of-fusion
2108.
Enthalpy of vaporization: The enthalpy of vaporization, (symbol ?vH), also known as the heat of vaporization or heat of evaporation, is the energy required to transform a given quantity of a substance into a gas.
http://explorer.cekli.com/ppt/enthalpy-of-vaporization
2109.
Specific heat capacity: Specific heat capacity, often shortened to specific heat, is the measure of the heat energy required to increase the temperature of a unit quantity of a substance by unit degree. The term originated p
http://explorer.cekli.com/ppt/specific-heat-capacity
2110.
Vapor pressure: Vapor pressure or equilibrium vapor pressure is the pressure of a vapor in equilibrium with its non-vapor phases. All liquids and solids have a tendency to evaporate to a gaseous form, and all gases h
http://explorer.cekli.com/ppt/vapor-pressure
2111.
Oxidation number: The oxidation number of a central atom in a coordination compound is the charge that it would have if all the ligands were removed along with the electron pairs that were shared with the central atom.
http://explorer.cekli.com/ppt/oxidation-number
2112.
Amphoteric: In chemistry, an amphoteric substance is one that can react as either an acid or base.[1] The word is derived from the Greek prefix ampho- (????-) meaning "both". Many metals (such as zinc, tin, lead,
http://explorer.cekli.com/ppt/amphoteric
2113.
Electronegativity: Electronegativity, symbol ?, is a chemical property that describes the ability of an atom (or, more rarely, a functional group) to attract electrons (or electron density) towards itself in a covalent
http://explorer.cekli.com/ppt/electronegativity
2114.
Ionization energy: The term ionization energy (EI) (of an atom or molecule) is most commonly used to refer to the energy required to remove (to infinity) the outermost electron in the atom or molecule when the gas atom
http://explorer.cekli.com/ppt/ionization-energy
2115.
Atomic radius: To a first approximation, atoms generally behave like minute spherical objects. The atomic radius of a chemical element is a measure of the size of its atoms, usually the distance from the nucleus to
http://explorer.cekli.com/ppt/atomic-radius
2116.
Picometre: A picometre (symbol pm) is a unit of length in the metric system, equal to one trillionth (short scale) or one billionth (long scale), i.e. (1/1,000,000,000,000) of a meter, which is the current SI ba
http://explorer.cekli.com/ppt/picometre
2117.
Covalent radius: The covalent radius, rcov, is a measure of the size of atom that forms part of a covalent bond. It is measured either in picometres (pm) or ångströms (Å), with 1 Å = 100 pm.
http://explorer.cekli.com/ppt/covalent-radius
2118.
Van der Waals radius: The van der Waals radius, rw, of an atom is the radius of an imaginary hard sphere which can be used to model the atom for many purposes. It is named after Johannes Diderik van der Waals, winner of th
http://explorer.cekli.com/ppt/van-der-waals-radius
2119.
Crystal structure: In mineralogy and crystallography, a crystal structure is a unique arrangement of atoms in a crystal. A crystal structure is composed of a motif, a set of atoms arranged in a particular way, and a lat
http://explorer.cekli.com/ppt/crystal-structure
2120.
Magnetism: In physics, the term magnetism is used to describe how materials respond on the microscopic level to an applied magnetic field; to categorize the magnetic phase of a material. For example, the most we
http://explorer.cekli.com/ppt/magnetism
2121.
Electrical resistivity: Electrical resistivity (also known as specific electrical resistance or volume resistivity) is a measure of how strongly a material opposes the flow of electric current. A low resistivity indicates a
http://explorer.cekli.com/ppt/electrical-resistivity
2122.
Thermal conductivity: In physics, thermal conductivity, k, is the property of a material that indicates its ability to conduct heat. It appears primarily in Fourier's Law for heat conduction.
http://explorer.cekli.com/ppt/thermal-conductivity
2123.
Coefficient of thermal expansion: When the temperature of a substance changes, the energy that is stored in the intermolecular bonds between atoms changes. When the stored energy increases, so does the length of the molecular bonds. A
http://explorer.cekli.com/ppt/coefficient-of-thermal-expansion
2124.
Metre per second: Metre per second (U.S. spelling: meter per second) is an SI derived unit of both speed (scalar) and velocity (vector quantity which specifies both magnitude and a specific direction), defined by dista
http://explorer.cekli.com/ppt/metre-per-second
2125.
Tensile strength: Tensile strength (?UTS or SU ) is indicated by the maxima of a stress-strain curve and, in general, indicates when necking will occur. As it is an intensive property, its value does not depend on
http://explorer.cekli.com/ppt/tensile-strength
2126.
Shear modulus: In materials science, shear modulus or modulus of rigidity, denoted by G, or sometimes S or ?, is defined as the ratio of shear stress to the shear strain:[1]
http://explorer.cekli.com/ppt/shear-modulus
2127.
Bulk modulus: The bulk modulus (K) of a substance measures the substance's resistance to uniform compression. It is defined as the pressure increase needed to cause a given relative decrease in volume. Its base uni
http://explorer.cekli.com/ppt/bulk-modulus
2128.
Poisson\'s ratio: Poisson's ratio (?), named after Siméon Poisson, is the ratio, when a sample object is stretched, of the contraction or transverse strain (perpendicular to the applied load), to the extension or axia
http://explorer.cekli.com/ppt/poisson%27s-ratio
2129.
Mohs scale of mineral hardness: The Mohs scale of mineral hardness characterizes the scratch resistance of various minerals through the ability of a harder material to scratch a softer material. It was created in 1812 by the German
http://explorer.cekli.com/ppt/mohs-scale-of-mineral-hardness
2130.
Vickers hardness test: The Vickers hardness test was developed in 1924 by Smith and Sandland at Vickers Ltd as an alternative to the Brinell method to measure the hardness of materials.[1] The Vickers test is often easier t
http://explorer.cekli.com/ppt/vickers-hardness-test
2131.
Brinell hardness test: The Brinell scale characterizes the indentation hardness of materials through the scale of penetration of an indenter, loaded on a material test-piece. It is one of several definitions of hardness in
http://explorer.cekli.com/ppt/brinell-hardness-test
2132.
CAS registry number: CAS registry numbers[1] are unique numerical identifiers for chemical elements, compounds, polymers, biological sequences, mixtures and alloys.[2] They are also referred to as CAS numbers, CAS RNs or
http://explorer.cekli.com/ppt/cas-registry-number
2133.
Isotopes of Gold: Gold (Au) has one stable isotope, 197Au, and 18 radioisotopes with 195Au being the most stable with a half-life of 186 days.
http://explorer.cekli.com/ppt/isotopes-of-gold
2134.
Natural abundance: In chemistry, natural abundance (NA) refers to the abundance isotopes of a chemical element as naturally found on a planet. The relative atomic mass (a weighted average) of these isotopes is the atomi
http://explorer.cekli.com/ppt/natural-abundance
2135.
Decay mode: Radioactive decay is the process in which an unstable atomic nucleus spontaneously loses energy by emitting ionizing particles and radiation. This decay, or loss of energy, results in an atom of one t
http://explorer.cekli.com/ppt/decay-mode
2136.
Decay energy: The decay energy is the energy released by a radioactive decay. Radioactive decay is the process in which an unstable atomic nucleus loses energy by emitting ionizing particles and radiation. This dec
http://explorer.cekli.com/ppt/decay-energy
2137.
Electronvolt: In physics, the electron volt (symbol eV; also written electronvolt according to the NIST, IUPAC,[1] and BIPM[2]) is a unit of energy. By definition, it is equal to the amount of kinetic energy gained
http://explorer.cekli.com/ppt/electronvolt
2138.
Decay product: In nuclear physics, a decay product (also known as a daughter product, daughter isotope or daughter nuclide, but see following clarification[1]) is a nuclide produced by radioactive decay. Radioactive
http://explorer.cekli.com/ppt/decay-product
2139.
Stable isotope: Stable isotopes are chemical isotopes that are not radioactive (they have not been observed to decay, though a few of them may be theoretically unstable with exceedingly long half-lives). By this defi
http://explorer.cekli.com/ppt/stable-isotope
2140.
Neutron: The neutron is a subatomic particle with no net electric charge and a mass slightly larger than that of a proton.
http://explorer.cekli.com/ppt/neutron
2141.
Chemical element: A chemical element is a pure chemical substance consisting of one type of atom distinguished by its atomic number, which is the number of protons in its nucleus. The term is also used to refer to a pu
http://explorer.cekli.com/ppt/chemical-element
2142.
Recorded History: Recorded history (sometimes called record history) can be defined as human history that has been written down or recorded by the use of language. It starts in the 4th millennium BC, with the invention
http://explorer.cekli.com/ppt/recorded-history
2143.
Gold nugget: A gold nugget is a naturally occurring piece of native gold. Watercourses often concentrate the nuggets and they are recovered by placer mining, but they may also be found in residual deposits where t
http://explorer.cekli.com/ppt/gold-nugget
2144.
Vein (geology): In geology, a vein is a finite volume within a rock, having a distinct shape, filled with crystals of one or more minerals, which were precipitated from an (aqueous) fluid. Veins are formed by fluids
http://explorer.cekli.com/ppt/vein-(geology)
2145.
Alluvial deposit: Alluvium (from the Latin, alluvius, from alluere, "to wash against") is soil or sediments deposited by a river or other running water. Alluvium is typically made up of a variety of materials, includin
http://explorer.cekli.com/ppt/alluvial-deposit
2146.
Dentistry: Dentistry is the known evaluation, diagnosis, prevention, and treatment of diseases, disorders and conditions of the soft and hard tissues of the jaw (mandible), the oral cavity, maxillofacial area an
http://explorer.cekli.com/ppt/dentistry
2147.
Electronics: Electronics is a branch of science and technology that deals with the controlled flow of electrons. The ability to control electron flow is usually applied to information handling or device control. E
http://explorer.cekli.com/ppt/electronics
2148.
Redox: Redox (shorthand for reduction-oxidation reaction) describes all chemical reactions in which atoms have their oxidation number (oxidation state) changed. This can be either a simple redox process such
http://explorer.cekli.com/ppt/redox
2149.
Trivalent: Valence or valency may refer to:
http://explorer.cekli.com/ppt/trivalent
2150.
Univalent: In chemistry, valence, also known as valency or valency number, is a measure of the number of chemical bonds formed by the atoms of a given element. Over the last century, the concept of valence evolv
http://explorer.cekli.com/ppt/univalent
2151.
Cation: An ion is an atom or molecule where the total number of electrons is not equal to the total number of protons, giving it a net positive or negative electrical charge.
http://explorer.cekli.com/ppt/cation
2152.
Hydrochloric acid: Hydrochloric acid is the solution of hydrogen chloride (HCl) in water. It is a highly corrosive, strong mineral acid and has major industrial uses. It is found naturally in gastric acid.
http://explorer.cekli.com/ppt/hydrochloric-acid
2153.
Sulfuric acid: Sulfuric (or sulphuric) acid, H2SO4, is a strong mineral acid. It is soluble in water at all concentrations. Sulfuric acid has many applications, and is one of the top products of the chemical industr
http://explorer.cekli.com/ppt/sulfuric-acid
2154.
Ductility: Ductility is a mechanical property used to describe the extent to which materials can be deformed plastically without fracture.
http://explorer.cekli.com/ppt/ductility
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