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