A) Aluminum B) Copper C) Silver D) Gold
A) Mercury B) Lead C) Zinc D) Iron
A) Iron B) Silver C) Copper D) Aluminum
A) Chromium B) Aluminum C) Nickel D) Zinc
A) Copper B) Aluminum C) Silver D) Gold
A) Aluminum B) Iron C) Copper D) Gold
A) Titanium B) Zinc C) Nickel D) Gold
A) Copper B) Titanium C) Amalgam D) Silver
A) Gold B) Aluminum C) Iron D) Silicon
A) Titanium B) Brass C) Copper D) Steel
A) Iron B) Titanium C) Silver D) Copper
A) Aluminum B) Silver C) Copper D) Zinc
A) Titanium B) Aluminum C) Steel D) Copper
A) Platinum B) Gold C) Copper D) Iron
A) Gold B) Silver C) Tungsten D) Copper
A) From Ancient Greek μέταλλον (métallon) meaning 'mine, quarry, metal' B) From Sanskrit mrita meaning 'mineral' C) From Latin metallum meaning 'ore' D) From Old English mete meaning 'substance'
A) Being non-reflective B) Conducting electricity and heat relatively well C) Having high melting points D) Being brittle
A) The general science of metals B) The study of organic compounds C) The study of gases D) The study of non-metallic minerals
A) Gold B) Lithium (0.534 g/cm3) C) Iron D) Copper
A) Ionic bonding B) Nondirectional metallic bonding C) Covalent bonding D) Hydrogen bonding
A) Face-centered cubic (fcc) and hexagonal close-packed (hcp) B) Body-centered cubic (bcc) C) Simple cubic D) Diamond cubic
A) It forms an alloy with other elements B) It remains non-metallic C) It gradually becomes a metal D) It turns into a gas
A) They are translucent B) They appear opaque C) They emit light D) They are transparent
A) 7.9 g/cm3 B) 22.59 g/cm3 C) 4.5 g/cm3 D) 8.9 g/cm3
A) It may lead to movement of structural defects like grain boundaries and dislocations B) It has no effect C) It makes metals brittle D) It causes metals to become non-conductive
A) Sodium B) Aluminium C) Lithium D) Magnesium
A) High-rise building and bridge construction B) Textile manufacturing C) Electronics casing only D) Food packaging
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) Transparent B) Lustrous C) Opaque D) Dull
A) High thermal expansion coefficient. B) The electronic structure with delocalized electron states near the Fermi level. C) Presence of a large energy gap between valence and conduction bands. D) Low density of free electrons.
A) Plutonium. B) Manganese. C) Gold. D) Silver.
A) The Wiedemann–Franz law. B) Kirchhoff's Law. C) Ohm's Law. D) Fermi-Dirac statistics.
A) By phonons only. B) By radiation. C) By liquid phase convection. D) By conduction electrons.
A) The free electron model. B) The Bohr model. C) The ideal gas law. D) The kinetic molecular theory.
A) Classical mechanics. B) Thermodynamics. C) Newton's laws. D) Density functional theory.
A) Neutral oxides B) Basic oxides C) Amphoteric oxides D) Acidic oxides
A) Sulfur B) Oxygen C) Nitrogen D) Arsenic
A) Food packaging B) Electrical wiring C) Building construction D) Automotive paint
A) Iron alloys B) Magnesium alloys C) Copper alloys D) Aluminum alloys
A) Amphoteric B) Strictly acidic C) Neutral D) Basic
A) Concorde B) Boeing 747 C) F-100 Super Sabre D) Cessna 172
A) Hafnium B) Rhenium C) Cassiopeium D) Lutetium
A) 1886 B) 1809 C) 1910 D) 1824
A) Ti3SiC2 B) Fe3C C) Al2O3 D) CuZn
A) Decorative purposes B) Electrical conductivity C) Industrial machinery D) Structural applications
A) Socrates B) Plato C) Pythagoras D) Aristotle
A) Prospecting techniques B) Recycling processes C) Electrolysis D) Pyrometallurgy
A) The Iranian plateau in the fifth millennium BCE B) Anatolia in 1800 BCE C) Toledo, Spain around 500 BCE D) Pre-Columbian America between 300 and 500 CE
A) Pre-Columbian Americans B) Rome, through Hannibal C) Indigenous Ecuadorians D) Ancient Chinese
A) Mercury B) Graphite C) Iron D) Copper
A) Agricultural fertilizers B) Catalytic converters C) Food preservation D) Textile manufacturing
A) Albert Einstein B) Enrico Fermi C) Jien-Wei Yeh D) Niels Bohr
A) Low-density silicate minerals B) Native metals C) High-density sulfide minerals D) Carbonates
A) 95% B) 85% C) 50% D) 99.9%
A) In 1800 BCE B) In the late third millennium BCE C) Around 2000 BCE D) During the Punic Wars
A) Pyrometallurgy B) Electrolysis C) Hydrometallurgy D) Smelting with carbon
A) 1945 B) 1944 C) 1912 D) 1940
A) The r-process B) Stellar nucleosynthesis C) The s-process D) Planetary condensation
A) Neutron capture B) Planetary condensation C) Merger of neutron stars D) Stellar nucleosynthesis
A) Low intrinsic value B) Higher than precious metals C) Equal to precious metals D) High intrinsic value
A) 10% B) 50% C) Approximately 25% D) 75%
A) High-efficiency transformers B) Textile manufacturing C) Food packaging D) Building construction
A) Brittleness B) Low melting point C) Magnetism D) Corrosion resistance
A) Resistant to corrosion B) High economic value C) Easily oxidized or corroded D) Brittleness
A) Aluminium B) Iron C) Scandium D) Titanium
A) Dan Shechtman, 1984 B) Dan Shechtman, 2011 C) Linus Pauling, 1955 D) Linus Pauling, 1923
A) 18th century B) 13th century C) 20th century D) 19th century
A) Von Welsbach B) Clark and Woods C) Pierre Berthier 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 s-process skips unstable nuclei, unlike the r-process. D) The r-process only forms elements lighter than iron.
A) Fermium B) Francium C) Astatine D) Oganesson
A) 1950s B) 1960s C) 1910 D) 1932
A) Korean War B) Cold War C) World War II D) World War I
A) Meteorology B) De la Pirotechnia (1540) C) De Natura Fossilium D) De Re Metallica
A) The 1700s B) The 1900s C) Until the 1960s D) The 1800s
A) Uranium B) Curium C) Plutonium D) Neptunium
A) Clark and Woods B) Von Welsbach C) Henry Bessemer D) Pierre Berthier
A) Transparency B) Low density C) Special magnetic properties D) High thermal conductivity
A) 1937 B) 1950 C) 1960 D) 1971
A) An archaeological site in Anatolia (Kaman-Kalehöyük) B) Pre-Columbian Panama and Costa Rica C) The Iranian plateau D) Egyptian tombs
A) Between 1000 and 1500 °C B) Below 1000 °C C) Above 2000 °C D) Around 500 °C
A) Ni80P20 B) CuZrAl C) Au75Si25 D) Fe70Ni30
A) 100 kilometers B) 500 meters C) 10,000 miles D) Nearly 700 light years
A) Carbon B) Hydrogen C) Oxygen D) Nitrogen
A) Japan B) France C) Germany D) USSR
A) NaCd2 B) Ni-Ti C) Al-Mn D) Au-Cd
A) Bronze B) Steel C) Tumbaga D) Toledo steel
A) Element #82 B) Element #75 C) Element #71, cassiopeium (later known as lutetium) D) Element #72
A) 1886 B) 1910 C) 1824 D) 1937
A) Au-Cd alloy researchers B) Linus Pauling C) Dan Shechtman D) Ni-Ti alloy researchers
A) Chemical reactivity B) Low densities C) High densities D) Lightweight nature
A) Gold B) Aluminum C) Copper D) Bismuth
A) NaCd2 B) Icosahedrite Al63Cu24Fe13 C) Au-Cd D) Ni-Ti
A) Albertus Magnus B) Vannoccio Biringuccio C) Antonio de Ulloa D) Georgius Agricola
A) Five-fold symmetry B) Two-fold symmetry C) Four-fold symmetry D) Six-fold symmetry
A) 1906 B) 1872 C) 1855 D) 1912
A) 1952 B) 1975 C) 1949 D) 1960
A) Gold B) Silver C) Platinum D) Nickel
A) Dark blue B) Yellow C) Violet D) Light blue
A) Poor corrosion resistance B) Resistance to oxidation C) Good low-temperature ductility D) Strength at elevated temperatures
A) 1910 B) 1890s C) 1886 D) 1824 |