A) Aluminum B) Copper C) Gold D) Silver
A) Iron B) Mercury C) Lead D) Zinc
A) Copper B) Iron C) Aluminum D) Silver
A) Nickel B) Chromium C) Aluminum D) Zinc
A) Aluminum B) Gold C) Silver D) Copper
A) Gold B) Aluminum C) Iron D) Copper
A) Titanium B) Nickel C) Zinc D) Gold
A) Silver B) Titanium C) Copper D) Amalgam
A) Gold B) Iron C) Silicon D) Aluminum
A) Copper B) Brass C) Steel D) Titanium
A) Silver B) Iron C) Titanium D) Copper
A) Aluminum B) Silver C) Zinc D) Copper
A) Copper B) Titanium C) Aluminum D) Steel
A) Iron B) Gold C) Platinum D) Copper
A) Copper B) Silver C) Tungsten D) Gold
A) From Old English mete meaning 'substance' B) From Latin metallum meaning 'ore' C) From Sanskrit mrita meaning 'mineral' D) From Ancient Greek μέταλλον (métallon) meaning 'mine, quarry, metal'
A) Having high melting points B) Being non-reflective C) Conducting electricity and heat relatively well D) Being brittle
A) The study of gases B) The study of non-metallic minerals C) The general science of metals D) The study of organic compounds
A) Lithium (0.534 g/cm3) B) Copper C) Iron D) Gold
A) Hydrogen bonding B) Covalent bonding C) Ionic bonding D) Nondirectional metallic bonding
A) Diamond cubic B) Face-centered cubic (fcc) and hexagonal close-packed (hcp) C) Body-centered cubic (bcc) D) Simple cubic
A) It remains non-metallic B) It forms an alloy with other elements C) It turns into a gas D) It gradually becomes a metal
A) They appear opaque B) They emit light C) They are translucent D) They are transparent
A) 8.9 g/cm3 B) 4.5 g/cm3 C) 7.9 g/cm3 D) 22.59 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) Aluminium B) Sodium C) Magnesium D) Lithium
A) Electronics casing only B) Food packaging C) Textile manufacturing D) High-rise building and bridge construction
A) Precious metals are no longer used B) Only gold and silver are used C) Coinage metals have extended to at least 23 chemical elements D) They are only used for jewelry
A) Opaque B) Lustrous C) Dull D) Transparent
A) High thermal expansion coefficient. B) The electronic structure with delocalized electron states near the Fermi level. C) Low density of free electrons. D) Presence of a large energy gap between valence and conduction bands.
A) Plutonium. B) Silver. C) Manganese. D) Gold.
A) Ohm's Law. B) Fermi-Dirac statistics. C) The Wiedemann–Franz law. D) Kirchhoff's Law.
A) By radiation. B) By liquid phase convection. 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) Classical mechanics. B) Density functional theory. C) Thermodynamics. D) Newton's laws.
A) Amphoteric oxides B) Neutral oxides C) Basic oxides D) Acidic oxides
A) Nitrogen B) Oxygen C) Sulfur D) Arsenic
A) Food packaging B) Building construction C) Electrical wiring D) Automotive paint
A) Copper alloys B) Magnesium alloys C) Iron alloys D) Aluminum alloys
A) Basic B) Amphoteric C) Neutral D) Strictly acidic
A) Dark blue B) Light blue C) Yellow D) Violet
A) Francium B) Astatine C) Fermium D) Oganesson
A) Around 500 °C B) Below 1000 °C C) Above 2000 °C D) Between 1000 and 1500 °C
A) Brittleness B) Magnetism C) Corrosion resistance D) Low melting point
A) High economic value B) Easily oxidized or corroded C) Brittleness D) Resistant to corrosion
A) Decorative purposes B) Electrical conductivity C) Structural applications D) Industrial machinery
A) Catalytic converters B) Agricultural fertilizers C) Food preservation D) Textile manufacturing
A) Gold B) Bismuth C) Aluminum D) Copper
A) Silver B) Gold C) Nickel D) Platinum
A) High intrinsic value B) Higher than precious metals C) Low intrinsic value D) Equal to precious metals
A) Merger of neutron stars B) Neutron capture C) Planetary condensation D) Stellar nucleosynthesis
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) Copper B) Mercury C) Graphite D) Iron
A) Stellar nucleosynthesis B) The s-process C) Planetary condensation D) The r-process
A) 50% B) 75% C) Approximately 25% D) 10%
A) Carbonates B) Native metals C) High-density sulfide minerals D) Low-density silicate minerals
A) 500 meters B) 10,000 miles C) Nearly 700 light years D) 100 kilometers
A) Pyrometallurgy B) Electrolysis C) Recycling processes D) Prospecting techniques
A) Pyrometallurgy B) Hydrometallurgy C) Smelting with carbon D) Electrolysis
A) 18th century B) 19th century C) 20th century D) 13th century
A) Tumbaga B) Steel C) Bronze D) Toledo steel
A) The Iranian plateau in the fifth millennium BCE B) Toledo, Spain around 500 BCE C) Anatolia in 1800 BCE D) Pre-Columbian America between 300 and 500 CE
A) In the late third millennium BCE B) In 1800 BCE C) Around 2000 BCE D) During the Punic Wars
A) Egyptian tombs B) An archaeological site in Anatolia (Kaman-Kalehöyük) C) Pre-Columbian Panama and Costa Rica D) The Iranian plateau
A) Ancient Chinese B) Rome, through Hannibal C) Indigenous Ecuadorians D) Pre-Columbian Americans
A) Socrates B) Pythagoras C) Aristotle D) Plato
A) Albertus Magnus B) Vannoccio Biringuccio C) Georgius Agricola D) Antonio de Ulloa
A) De Re Metallica B) De la Pirotechnia (1540) C) Meteorology D) De Natura Fossilium
A) The 1900s B) Until the 1960s C) The 1700s D) The 1800s
A) 1910 B) 1824 C) 1886 D) 1809
A) High densities B) Lightweight nature C) Low densities D) Chemical reactivity
A) 1824 B) 1937 C) 1910 D) 1886
A) F-100 Super Sabre B) Cessna 172 C) Concorde D) Boeing 747
A) 1971 B) 1960 C) 1937 D) 1950
A) 1824 B) 1886 C) 1910 D) 1890s
A) Iron B) Scandium C) Aluminium D) Titanium
A) Korean War B) Cold War C) World War I D) World War II
A) 85% B) 99.9% C) 50% D) 95%
A) Germany B) France C) Japan D) USSR
A) 1950s B) 1932 C) 1960s D) 1910
A) Pierre Berthier B) Von Welsbach C) Clark and Woods D) Henry Bessemer
A) Pierre Berthier B) Clark and Woods C) Henry Bessemer D) Von Welsbach
A) 1872 B) 1855 C) 1906 D) 1912
A) Element #71, cassiopeium (later known as lutetium) B) Element #72 C) Element #82 D) Element #75
A) Lutetium B) Rhenium C) Cassiopeium D) Hafnium
A) 1912 B) 1945 C) 1940 D) 1944
A) Uranium B) Neptunium C) Plutonium D) Curium
A) Strength at elevated temperatures B) Resistance to oxidation C) Poor corrosion resistance D) Good low-temperature ductility
A) 1960 B) 1975 C) 1949 D) 1952
A) Fe70Ni30 B) CuZrAl C) Ni80P20 D) Au75Si25
A) Building construction B) Textile manufacturing C) High-efficiency transformers D) Food packaging
A) Oxygen B) Carbon C) Nitrogen D) Hydrogen
A) Transparency B) High thermal conductivity C) Special magnetic properties D) Low density
A) NaCd2 B) Al-Mn C) Au-Cd D) Ni-Ti
A) Dan Shechtman, 2011 B) Dan Shechtman, 1984 C) Linus Pauling, 1923 D) Linus Pauling, 1955
A) Four-fold symmetry B) Six-fold symmetry C) Two-fold symmetry D) Five-fold symmetry
A) NaCd2 B) Au-Cd C) Icosahedrite Al63Cu24Fe13 D) Ni-Ti
A) Ni-Ti alloy researchers B) Dan Shechtman C) Au-Cd alloy researchers D) Linus Pauling
A) Albert Einstein B) Niels Bohr C) Enrico Fermi D) Jien-Wei Yeh
A) Ti3SiC2 B) CuZn C) Fe3C D) Al2O3 |