A) Copper B) Gold C) Aluminum D) Silver
A) Mercury B) Zinc C) Iron D) Lead
A) Aluminum B) Copper C) Iron D) Silver
A) Nickel B) Aluminum C) Zinc D) Chromium
A) Gold B) Silver C) Aluminum D) Copper
A) Copper B) Gold C) Iron D) Aluminum
A) Zinc B) Titanium C) Gold D) Nickel
A) Titanium B) Silver C) Amalgam D) Copper
A) Gold B) Iron C) Aluminum D) Silicon
A) Titanium B) Steel C) Brass D) Copper
A) Copper B) Iron C) Silver D) Titanium
A) Zinc B) Copper C) Silver D) Aluminum
A) Titanium B) Steel C) Aluminum D) Copper
A) Copper B) Gold C) Platinum D) Iron
A) Copper B) Silver C) Gold D) Tungsten
A) From Old English mete meaning 'substance' B) From Ancient Greek μέταλλον (métallon) meaning 'mine, quarry, metal' C) From Latin metallum meaning 'ore' D) From Sanskrit mrita meaning 'mineral'
A) Being brittle B) Conducting electricity and heat relatively well C) Having high melting points D) Being non-reflective
A) The study of non-metallic minerals B) The study of organic compounds C) The general science of metals D) The study of gases
A) Iron B) Gold C) Copper D) Lithium (0.534 g/cm3)
A) Covalent bonding B) Hydrogen bonding C) Ionic bonding D) Nondirectional metallic bonding
A) Diamond cubic B) Body-centered cubic (bcc) C) Simple cubic D) Face-centered cubic (fcc) and hexagonal close-packed (hcp)
A) It remains non-metallic B) It turns into a gas C) It gradually becomes a metal D) It forms an alloy with other elements
A) They emit light B) They are transparent C) They are translucent D) They appear opaque
A) 8.9 g/cm3 B) 4.5 g/cm3 C) 22.59 g/cm3 D) 7.9 g/cm3
A) It has no effect B) It makes metals brittle C) It causes metals to become non-conductive D) It may lead to movement of structural defects like grain boundaries and dislocations
A) Sodium B) Lithium C) Aluminium D) Magnesium
A) Textile manufacturing B) Electronics casing only C) High-rise building and bridge construction D) Food packaging
A) Only gold and silver are used B) Precious metals are no longer used C) They are only used for jewelry D) Coinage metals have extended to at least 23 chemical elements
A) Transparent B) Opaque C) Lustrous D) Dull
A) Low density of free electrons. B) High thermal expansion coefficient. C) Presence of a large energy gap between valence and conduction bands. D) The electronic structure with delocalized electron states near the Fermi level.
A) Gold. B) Silver. C) Manganese. D) Plutonium.
A) Kirchhoff's Law. B) The Wiedemann–Franz law. C) Ohm's Law. D) Fermi-Dirac statistics.
A) By conduction electrons. B) By radiation. C) By phonons only. D) By liquid phase convection.
A) The ideal gas law. B) The free electron model. C) The kinetic molecular theory. D) The Bohr model.
A) Newton's laws. B) Thermodynamics. C) Classical mechanics. D) Density functional theory.
A) Acidic oxides B) Amphoteric oxides C) Basic oxides D) Neutral oxides
A) Nitrogen B) Oxygen C) Sulfur D) Arsenic
A) Food packaging B) Automotive paint C) Building construction D) Electrical wiring
A) Iron alloys B) Copper alloys C) Magnesium alloys D) Aluminum alloys
A) Amphoteric B) Strictly acidic C) Neutral D) Basic
A) Cessna 172 B) Concorde C) Boeing 747 D) F-100 Super Sabre
A) Rhenium B) Lutetium C) Cassiopeium D) Hafnium
A) 1910 B) 1886 C) 1824 D) 1809
A) Ti3SiC2 B) Fe3C C) CuZn D) Al2O3
A) Structural applications B) Industrial machinery C) Decorative purposes D) Electrical conductivity
A) Pythagoras B) Socrates C) Aristotle D) Plato
A) Electrolysis B) Pyrometallurgy C) Prospecting techniques D) Recycling processes
A) Pre-Columbian America between 300 and 500 CE B) The Iranian plateau in the fifth millennium BCE C) Toledo, Spain around 500 BCE D) Anatolia in 1800 BCE
A) Rome, through Hannibal B) Pre-Columbian Americans C) Indigenous Ecuadorians D) Ancient Chinese
A) Copper B) Mercury C) Iron D) Graphite
A) Food preservation B) Agricultural fertilizers C) Catalytic converters D) Textile manufacturing
A) Albert Einstein B) Niels Bohr C) Jien-Wei Yeh D) Enrico Fermi
A) Carbonates B) Low-density silicate minerals C) Native metals D) High-density sulfide minerals
A) 95% B) 50% C) 85% D) 99.9%
A) Around 2000 BCE B) In 1800 BCE C) In the late third millennium BCE D) During the Punic Wars
A) Hydrometallurgy B) Smelting with carbon C) Electrolysis D) Pyrometallurgy
A) 1940 B) 1945 C) 1912 D) 1944
A) Planetary condensation B) The s-process C) Stellar nucleosynthesis D) The r-process
A) Merger of neutron stars B) Neutron capture C) Planetary condensation D) Stellar nucleosynthesis
A) High intrinsic value B) Equal to precious metals C) Higher than precious metals D) Low intrinsic value
A) Approximately 25% B) 75% C) 50% D) 10%
A) Building construction B) High-efficiency transformers C) Food packaging D) Textile manufacturing
A) Low melting point B) Brittleness C) Corrosion resistance D) Magnetism
A) Brittleness B) High economic value C) Resistant to corrosion D) Easily oxidized or corroded
A) Iron B) Scandium C) Titanium D) Aluminium
A) Dan Shechtman, 2011 B) Dan Shechtman, 1984 C) Linus Pauling, 1955 D) Linus Pauling, 1923
A) 19th century B) 18th century C) 20th century D) 13th century
A) Pierre Berthier B) Clark and Woods C) Von Welsbach D) Henry Bessemer
A) Both processes involve rapid neutron captures. B) The s-process involves slow neutron captures allowing beta decay, while the r-process occurs rapidly without time for decay. C) The r-process only forms elements lighter than iron. D) The s-process skips unstable nuclei, unlike the r-process.
A) Oganesson B) Francium C) Fermium D) Astatine
A) 1950s B) 1960s C) 1910 D) 1932
A) World War I B) World War II C) Cold War D) Korean War
A) De la Pirotechnia (1540) B) Meteorology C) De Re Metallica D) De Natura Fossilium
A) The 1900s B) The 1700s C) Until the 1960s D) The 1800s
A) Neptunium B) Plutonium C) Curium D) Uranium
A) Henry Bessemer B) Von Welsbach C) Clark and Woods D) Pierre Berthier
A) High thermal conductivity B) Special magnetic properties C) Transparency D) Low density
A) 1937 B) 1960 C) 1971 D) 1950
A) Egyptian tombs B) Pre-Columbian Panama and Costa Rica C) An archaeological site in Anatolia (Kaman-Kalehöyük) D) The Iranian plateau
A) Around 500 °C B) Between 1000 and 1500 °C C) Below 1000 °C D) Above 2000 °C
A) CuZrAl B) Fe70Ni30 C) Au75Si25 D) Ni80P20
A) 10,000 miles B) 500 meters C) 100 kilometers D) Nearly 700 light years
A) Hydrogen B) Carbon C) Nitrogen D) Oxygen
A) USSR B) France C) Germany D) Japan
A) Au-Cd B) Ni-Ti C) NaCd2 D) Al-Mn
A) Tumbaga B) Steel C) Bronze D) Toledo steel
A) Element #75 B) Element #72 C) Element #71, cassiopeium (later known as lutetium) D) Element #82
A) 1937 B) 1910 C) 1824 D) 1886
A) Linus Pauling B) Au-Cd alloy researchers C) Dan Shechtman D) Ni-Ti alloy researchers
A) High densities B) Chemical reactivity C) Low densities D) Lightweight nature
A) Gold B) Aluminum C) Bismuth D) Copper
A) Ni-Ti B) Icosahedrite Al63Cu24Fe13 C) NaCd2 D) Au-Cd
A) Antonio de Ulloa B) Vannoccio Biringuccio C) Albertus Magnus D) Georgius Agricola
A) Four-fold symmetry B) Five-fold symmetry C) Six-fold symmetry D) Two-fold symmetry
A) 1912 B) 1872 C) 1906 D) 1855
A) 1952 B) 1975 C) 1960 D) 1949
A) Gold B) Silver C) Platinum D) Nickel
A) Light blue B) Yellow C) Dark blue D) Violet
A) Good low-temperature ductility B) Strength at elevated temperatures C) Poor corrosion resistance D) Resistance to oxidation
A) 1824 B) 1910 C) 1890s D) 1886 |