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