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