Q: Is nickel a chemical element with symbol Ni and atomic number 28? ¶
Q: Is nickel a naturally magnetostrictive material? ¶
A: Yes, and meaning that, in the presence of a magnetic field, the material undergoes a small change in length.
Q: Is nickel of intermediate strength between iron-based permanent magnets and rare-earth magnets? ¶
Q: Is nickel a silvery-white metal with a slight golden tinge that takes a high polish? ¶
Q: Is nickel on the order of 50 ppm and is negative? ¶
A: Yes, and indicating that it contracts.
Q: Is nickel +2? ¶
A: Yes, but compounds of Ni0, Ni+, and Ni3+ are well known, and the exotic oxidation states Ni2−, Ni1−, and Ni4+ have been produced and studied.
Q: Is nickel preeminently an alloy metal? ¶
A: Yes, and its chief use is in nickel steels and nickel cast irons, in which it typically increases the tensile strength, toughness, and elastic limit.
Q: Is nickel found in combination with iron? ¶
A: Yes, and a reflection of the origin of those elements as major end products of supernova nucleosynthesis.
Q: Is nickel 5 cents? ¶
A: Yes, and this made it an attractive target for melting by people wanting to sell the metals at a profit.
Q: Was nickel obtained as a byproduct of cobalt blue production? ¶
Q: Is nickel obtained through extractive metallurgy: it is extracted from the ore by conventional roasting and reduction processes that yield a metal of greater than 75% purity? ¶
Q: Is nickel first used in 1881 in Switzerland? ¶
A: Yes, and 99.
Q: Is nickel used as a binder in the cemented tungsten carbide or hardmetal industry and used in proportions of 6% to 12% by weight? ¶
Q: Was nickel voted Allergen of the Year in 2008 by the American Contact Dermatitis Society? ¶
Q: Is nickel used in many specific and recognizable industrial and consumer products? ¶
A: Yes, and including stainless steel, alnico magnets, coinage, rechargeable batteries, electric guitar strings, microphone capsules, plating on plumbing fixtures, and special alloys such as permalloy, elinvar, and invar.
Q: Is nickel presently used as follows: 46% in nickel steel? ¶
A: Yes, 34% nonferrous alloys and superalloys; 14% electroplating, and 6% other uses.
Q: Was nickel removed from Canadian and U.S? ¶
A: Yes, coins to save it for strategic armor.
Q: Is nickel mined from two types of ore deposits? ¶
Q: Is nickel known to play an important role in the biology of some plants? ¶
A: Yes, and eubacteria, archaebacteria, and fungi.
Q: Was nickel also occasionally used in some countries after 1859 as a cheap coinage metal? ¶
A: Yes, but in the later years of the 20th century was replaced by cheaper stainless steel alloys, except in the United States and Canada.
Q: Is nickel a face-centered cube with the lattice parameter of 0.352 nm? ¶
A: Yes, and giving an atomic radius of 0.124 nm.
Q: Is nickel an excellent alloying agent for certain precious metals and is used in the fire assay as a collector of platinum group elements? ¶
A: Yes, As such, nickel is capable of fully collecting all 6 PGE elements from ores, and of partially collecting gold.
Q: Was nickel occasionally used as a substitute for decorative silver? ¶
Q: Was nickel first isolated and classified as a chemical element in 1751 by Axel Fredrik Cronstedt? ¶
A: Yes, and who initially mistook the ore for a copper mineral.
Q: Is nickel commonly found in iron meteorites as the alloys kamacite and taenite? ¶
Q: Is nickel an essential nutrient for some microorganisms and plants that have enzymes with nickel as an active site? ¶
Q: Is nickel reacted with carbon monoxide in the presence of a sulfur catalyst at around 40–80 °C to form nickel carbonyl? ¶
Q: Is nickel implicated in the catalytic formation of the hard calcium carbonate plates of the spiny tests on larval sea urchins? ¶
Q: Was nickel the rare Kupfernickel? ¶
Q: Is nickel in manganese crusts and nodules covering large areas of the ocean floor? ¶
A: Yes, and particularly in the Pacific Ocean.
Q: Is nickel not a cumulative poison? ¶
A: Yes, but larger doses or chronic exposure may be toxic, even carcinogenic, and constitute an occupational hazard.
Q: Is nickel ancient? ¶
A: Yes, and can be traced back as far as 3500 BCE.
Q: Is nickel non-magnetic above this temperature? ¶
Q: Is nickel easily mistaken for ores of silver? ¶
A: Yes, and understanding of this metal and its use dates to relatively recent times.
Q: Is nickel 1000 µg/day? ¶
A: Yes, while estimated average ingestion is 69–162 µg/day.
Q: Is nickel one of four elements that are ferromagnetic around room temperature? ¶
Q: Is nickel the iron ore limonite? ¶
A: Yes, and which often contains 1–2% nickel.
Q: Is nickel immediately dangerous to life and health? ¶
Q: Is nickel obtained from nickel carbonyl by one of two processes? ¶
Q: Is nickel composed of five stable isotopes? ¶
A: Yes, 58Ni, 60Ni, 61Ni, 62Ni and 64Ni, with 58Ni being the most abundant. Isotopes heavier than 62Ni cannot be formed by nuclear fusion without losing energy.
Q: Is nickel found in Earth's crust only in tiny amounts? ¶
A: Yes, and usually in ultramafic rocks, and in the interiors of larger nickel–iron meteorites that were not exposed to oxygen when outside Earth's atmosphere.
Q: Is nickel found naturally in both food and water? ¶
A: Yes, and may be increased by human pollution.
Q: Is nickel the top confirmed contact allergen worldwide? ¶
A: Yes, and partly due to its use in jewelry for pierced ears.