Relatively stable in air, yttrium has a silver-metallic luster. Plutonium is bright, silvery, and tarnishes in air. Uranium oxide was used for centuries as a coloring agent in ceramic glazes and glass, but contemporary use of uranium exploits its nuclear properties. First produced in 1950, californium acts like other lanthanide elements. It occurs naturally with other rare earth metals in a variety of minerals. Einsteinium was identified in 1952 from debris off the first large thermonuclear explosion. Radium also produces radon gas, which is used in cancer and other disease treatments. Shop Inorganic Tin Compounds Browse All Products Containing Tin , Atomic Weight: 118.7 Melting Point: 232C Boiling Point: 2270C Phase at STP: Solid Electronic Configuration: [Kr]4d105s25p2Common Oxidation States: +4,2 Number of Valence Electrons: 4. 1) chlorine 2) copper 3) helium 4) sulfur please explain why AI Recommended Answer: 1) Chlorine is malleable at STP. Shop Inorganic Cesium Compounds Browse All Products Containing Cesium , Atomic Weight: 132.9 Melting Point: 28.4C Boiling Point: 669C Phase at STP: Solid Electronic Configuration: [Xe]6s1Common Oxidation States: +1 Number of Valence Electrons: 1. Pure uranium metal is silvery white, weakly radioactive, and harder than most other elements. Twenty isotopes are known, though isotopes 237 and 238 havent been proven. Radium emits alpha, beta, and gamma rays and produces neutrons when mixed with beryllium. Flerovium is a super-heavy and synthetic radioactive element first discovered in 1999. Its gas is colorless, odorless, and tasteless. Elemental calcium was discovered in 1808. Semi-isolated in 1841, praseodymium was clearly identified as an element in 1885. Gallium can be liquid near room temperature, making it useful in high-temperature thermometers. Titanium is found in meteorites and the sun and was found in rocks from the moon. The oganesson atom is very unstable. Sulfur. It produces greenish-blue flames. Shop Inorganic Gadolinium Compounds Browse All Products Containing Gadolinium , Atomic Weight: 157.3 Melting Point: 1313C Boiling Point: 3273C Phase at STP: Solid Electronic Configuration: [Xe]4f75d16s2Common Oxidation States: +3 Number of Valence Electrons: 2. Polonium-210 is extremely dangerous in any amount; its alpha particles are completely absorbed into body tissue. Pure tungsten is a gray and white metal. Although it is considered to be inert, some compounds of krypton have been shown to exist. Scientific research is its only practical application. Shop Inorganic Boron Compounds Browse All Products Containing Boron , Atomic Weight: 10.81 Melting Point: 2079C Boiling Point: 2550C Phase at STP: Solid Electronic Configuration: [He]2s22p1Common Oxidation States: +3 Number of Valence Electrons: 3. Vanadium is found in carnotite, roscoelite, vanadinite, patronite, and many other minerals. Used originally as an astringent and a dyeing mordant, aluminum was first isolated in 1827. Twenty-four rubidium isotopes are known, and the naturally occurring form is radioactive and includes two isotopes. Shop Inorganic Cerium Compounds Browse All Products Containing Cerium , Atomic Weight: 140.1 Melting Point: 798C Boiling Point: 3257C Phase at STP: Solid Electronic Configuration: [Xe]4f15d16s2Common Oxidation States: +3,4 Number of Valence Electrons: 4. Originally called hahnium, the name was later changed by IUPAC as a nod to the Dubna site of the Joint Institute for Nuclear Research in Russia. Like zirconium and hafnium, rutherfordium is expected to form a stable oxide and react with halogens to form volatile tetrahalides. In both gaseous and liquid forms, argon is colorless and odorless. Purified actinium equilibrates with its decay products after 185 days and continues to decay based on its half-life. Fourteen isotopes of curium are known. Discovered in 1802, tantalum occurs mainly in columbite-tantalite minerals. Its radioactivity wasnt discovered until 1896. Nobelium was discovered and identified in 1958. The use of fluorspar as a flux was described in 1529, but fluorine was not isolated until 1866. Shop Inorganic Rhodium Compounds Browse All Products Containing Rhodium , Atomic Weight: 102.9 Melting Point: 1966C Boiling Point: 3727C Phase at STP: Solid Electronic Configuration: [Kr]4d85s1Common Oxidation States: +3,4,6 Number of Valence Electrons: 9. Palladium metal is used in dentistry, watch making, surgical instruments, and electrical contacts. Discovered in 1898, xenon is a noble or "inert" gas. It is also used in rocket fuel; for welding, making hydrochloric acid, and reducing metallic ores; and to fill balloons. Natural xenon has nine stable isotopes, and 20 unstable isotopes are known. Thorium was first observed in 1829 and deemed radioactive in 1898. Atomic Weight: 20.18 Melting Point: -248C Boiling Point: -248.7C Phase at STP: Gas Electronic Configuration: [He]2s22p6Common Oxidation States: 0 Number of Valence Electrons: 8. Atomic Weight: (222) Melting Point: -71C Boiling Point: -61.8C Phase at STP: Gas Electronic Configuration: [Xe]4f145d106s26p6Common Oxidation States: 0 Number of Valence Electrons: 8. Shop Inorganic Barium Compounds Browse All Products Containing Barium , Atomic Weight: 137.3 Melting Point: 725C Boiling Point: 1640C Phase at STP: Solid Electronic Configuration: [Xe]6s2Common Oxidation States: +2 Number of Valence Electrons: 2. Their properties are a mixture of or fall between those of metals and nonmetals, and the number of elements included in this category can vary. Pure aluminum is soft and lacks strength, but alloys of copper, magnesium, silicon, manganese, and other elements add to its usefulness. Two allotropic forms exist and little is known about their properties. Shop Inorganic Sodium Compounds Browse All Products Containing Sodium , Atomic Weight: 22.99 Melting Point: 97.8C Boiling Point: 883C Phase at STP: Solid Electronic Configuration: [Ne]3s1Common Oxidation States: +1 Number of Valence Electrons: 1. Atomic Weight: (251) Melting Point: N/A Boiling Point: N/A Phase at STP: N/A Electronic Configuration: [Rn]5f107s2Common Oxidation States: +3 Number of Valence Electrons: 2. Atomic Weight: 14.01 Melting Point: -209.9C Boiling Point: -195.8C Phase at STP: Gas Electronic Configuration: [He]2s22p3Common Oxidation States: -3 Number of Valence Electrons: 5. Nine other unstable isotopes exist. Its silvery white and relatively stable in air. Europium isotopes are being studied for possible use in nuclear control applications, while europium-doped plastic is used as a laser material. Bromine is used in fumigants, flameproofing agents, water purification compounds, dyes, medicines, sanitizers, and photography chemicals. They have poor mechanical strength, form covalent bonds, and display acid-base amphoterism. Two thirds of the human body and nine tenths of water are oxygen. Cesium, an alkali metal, was discovered spectroscopically in 1860. Distinguishing luster (shine) Non-lustrous, various Tin is also called stannum and has been known since ancient times. Cerium is a lustrous iron-gray metal that is malleable and oxidizes at room temperature, and the pure metal may ignite if scratched with a knife. Atomic Weight: (259) Melting Point: N/A Boiling Point: N/A Phase at STP: N/A Electronic Configuration: [Rn]5f147s2Common Oxidation States: +2,3 Number of Valence Electrons: 2. As of October 1971, two new isotopes were synthesized using the heavy ion linear accelerator in Berkeley, California. Finely divided zirconium metal may ignite spontaneously in air. It occurs in lepidolite, pollucte, and in other sources. As the heaviest known gas, radon is essentially inert. Meitnerium has no stable or natural isotopes; its formed by the fusion of two atoms or the decay of heavier elements. Shop Inorganic Calcium Compounds Browse All Products Containing Calcium , Atomic Weight: 40.08 Melting Point: 839C Boiling Point: 1484C Phase at STP: Solid Electronic Configuration: [Ar]4s2Common Oxidation States: +2 Number of Valence Electrons: 2. Malleable and ductile, it is a good conductor of heat and electricity. Oxygen gas forms 21% of the atmosphere by volume and the element and its compounds make up nearly half the weight of the earth's crust. Cesium is one of just three metals that are liquid at room temperature. A silvery-white metal, aluminum is light, non-magnetic, and non-sparking; it is second among metals in malleability, and sixth in ductility. Atomic Weight: (223) Melting Point: 27C Boiling Point: 677C Phase at STP: Solid Electronic Configuration: [Rn]7s1Common Oxidation States: +1 Number of Valence Electrons: 1. Shop Inorganic Antimony Compounds Browse All Products Containing Antimony , Atomic Weight: 121.8 Melting Point: 631C Boiling Point: 1950C Phase at STP: Solid Electronic Configuration: [Kr]4d105s25p3Common Oxidation States: +3,5 Number of Valence Electrons: 5. Pure thorium is a silvery-white metal that slowly tarnishes in air to gray and black. Curium was the third trans-uranium element discovered, identified in 1944 and isolated in 1947. Chlorine is used to produce safe drinking water and in the making of paper products, dyestuffs, textiles, petroleum products, medicines, antiseptics, insecticides, food, solvents, paints, plastics, and many other products. Praseodymium is soft, silvery, malleable, ductile, and develops a green oxide coating when exposed to air. Seven isotopes of helium are known. the elements of the periodic table are arranged in order of increasing. Gadolinia, the oxide of gadolinium, was separated in 1880 and independently isolated from yttria in 1886. In alloys, it is used for high-speed, heavy-duty, high-temperature cutting tools and dies, in magnetic and stainless steels, and in jet turbines and gas turbine generators. More than 30 compounds have been created with this element. The properties of astatine are only estimations. Although its chemical properties have only been partly characterized, it is similar to other group seven elements. Barium compounds that are water or acid soluble are poisonous. They are the only group whose elements at room temperature include solid, liquid, and gas forms of matter. Livermorium is also expected to have properties in common with oxygen, sulfur, selenium, and tellurium. WebWhich element is malleable at STP? Although recognized in compounds, sodium was first isolated in 1807. Atomic Weight: (285) Melting Point: N/A Boiling Point: N/A Phase at STP: N/A Electronic Configuration: *[Rn]5f146d107s2Common Oxidation States: N/A Number of Valence Electrons: N/A. Shop Inorganic Erbium Compounds Browse All Products Containing Erbium , Atomic Weight: 167.3 Melting Point: 1529C Boiling Point: 2868C Phase at STP: Solid Electronic Configuration: [Xe]4f126s2Common Oxidation States: +3 Number of Valence Electrons: 2. The metal is relatively stable in dry air but tarnishes in moist air. This experience is for those who are in the healthcare field. Elemental arsenic occurs in either yellow or gray metallic forms that have slightly different specific gravities. Although relatively inert, it is affected by halogens and dilute alkali and unaffected by most acids. Vanadium is also found in phosphate rock, certain iron ores, crude oils, and meteorites. In nature, erbium is a mixture of six stable isotopes, though nine radioactive isotopes exist. Principal sources of zinc are sphalerite (sulfide), smithsonite (carbonate), calamine (silicate), and franklinite (zinc, manganese, iron oxide) ores. In its natural form, it is a mixture of three isotopes. The existence of element 43 was first predicted by the periodic table. Melting points range from 650 to 1,287C and boiling points range from 1,090 to 2,471C. a- xenon b- silicon c- platinum d- hydrogen Answers C- Platinum because it is a metal and Naturally occurring zinc includes five stable isotopes, and sixteen other unstable isotopes are known. No other commercial uses for lutetium are known. Shop Inorganic Yttrium Compounds Browse All Products Containing Yttrium , Atomic Weight: 88.91 Melting Point: 1523C Boiling Point: 3337C Phase at STP: Solid Electronic Configuration: [Kr]4d15s2 Common Oxidation States: +3 Number of Valence Electrons: 3. Terbium has a silver-gray color and is both malleable and ductile. It is found in niobite, niobite-tantalite, parochlore, and euxenite, and large deposits are associated with carbon-silicate rocks. VIDEO ANSWER:Okay, so the question asked which element is multiple? The first sample was produced in 1943. Rutherfordium was discovered in 1964 through separate research efforts in the Soviet Union and the United States. Twenty-five isotopes are known, and natural thulium is stable. First detected in 1890, europium was isolated in reasonably pure form in 1901. Atomic Weight: (247) Melting Point: 1340C Boiling Point: N/A Phase at STP: Solid Electronic Configuration: [Rn]5f76d17s2Common Oxidation States: +3 Number of Valence Electrons: 2. The metal is used in solder, cable covering, plumbing, and ammunition, and as a radiation shield for X-ray equipment and nuclear reactors. Polonium was the first element discovered by Marie Curie in 1898. Sodium is never found free in nature. It remains liquid down to absolute zero but will readily solidify with increased pressure. Twelve radioactive isotopes also exist. It also acts as a crystal stabilizer in fuel cells that operate at high temperatures. Atomic Weight: (294) Melting Point: N/A Boiling Point: N/A Phase at STP: N/A Electronic Configuration: *[Rn]5f146d107s27p5Common Oxidation States: N/A Number of Valence Electrons: N/A. What is STP in chemistry? | Socratic This alkaline earth metal is metallic, soft, and silvery white when pure, resembling calcium. Actinium was first discovered in 1899 and occurs naturally with uranium minerals. This element behaves like lutetium, is trivalent, and could be classified as the first 7th-period transition metal. However, fine pieces of the metal will ignite in air at temperatures greater than 400C. Cerium oxide is an important constituent of incandescent gas mantles and is emerging as a hydrocarbon catalyst in self-cleaning ovens. Promethium is a soft beta emitter and its salts have a pale blue or greenish hue. Found chiefly in the cassiterite ore, tin is obtained by processing the ore with coal in a reverberatory furnace. Argon is used in incandescent and fluorescent light bulbs and in photo and glow tubes. Scandium iodide added to mercury vapor lamps produces a highly efficient light source resembling sunlight, important for indoor or nighttime color TV. WebStudy with Quizlet and memorize flashcards containing terms like what type of bonding is present in a metal that is malleable, which compound has the strongest hydrogen Atomic Weight: 83.80 Melting Point: -157C Boiling Point: -152C Phase at STP: Gas Electronic Configuration: [Ar]3d104s24p6Common Oxidation States: 0 Number of Valence Electrons: 8. Halogens are the non-metallic elements found in group 17 of the periodic table: and include fluorine, chlorine, bromine, iodine, and astatine. Shop Inorganic Copper Compounds Browse All Products Containing Copper , Atomic Weight: 63.55 Melting Point: 1083C Boiling Point: 2567C Phase at STP: Solid Electronic Configuration: [Ar]3d104s1Common Oxidation States: +2,1 Number of Valence Electrons: 1. Which element is malleable at STP? 1) chlorine Lead compounds are used in batteries, paints, crystal, and flint glass. Shop Inorganic Aluminum Compounds Browse All Products Containing Aluminum , Atomic Weight: 26.98 Melting Point: 660C Boiling Point: 2467C Phase at STP: Solid Electronic Configuration: [Ne]3s23p1Common Oxidation States: +3 Number of Valence Electrons: 3. Ductile only when free of oxygen, it burns in air and is the only element that burns in nitrogen. Its present in all uranium minerals. Shop Inorganic Arsenic Compounds Browse All Products Containing Arsenic , Atomic Weight: 74.92 Melting Point: 817C Boiling Point: 617C Phase at STP: Solid Electronic Configuration: [Ar]3d104s24p3Common Oxidation States: 3,+5 Number of Valence Electrons: 5. Testing has confirmed that it behaves like a heavier homolog to osmium and reacts with oxygen to form a volatile tetroxide. Atomic Weight: (237) Melting Point: 640C Boiling Point: 3900C Phase at STP: Solid Electronic Configuration: [Rn]5f46d17s2Common Oxidation States: +5,3,4,6 Number of Valence Electrons: 7. Web29 At STP, which element is brittle and not a conductor of electricity S Which list of elements contains a metal, a metalloid, and a nonmetal Cd, Sb, I nonmetals in the solid It is corrosion-resistant and its low electrical resistance makes it a good electrical contact material. It decomposes in water to produce hydrogen, and ignites spontaneously in air. It has 27 unstable radioisotopes. The ability to be malleable and conductive has to Its also hard and brittle and therefore hard to machine, form, or work. The existence of promethium was predicted in 1902 and confirmed in 1914, though searches for it on earth have been unsuccessful. Hydrofluoric acid can etch glass and fluorochlorohydrocarbons are used as coolants for air conditioning and refrigeration. It is commonly used in nuclear applications and for producing rust-resistant and high-speed tool steels. Atomic Weight: 16.00 Melting Point: -218.4C Boiling Point: -183C Phase at STP: Gas Electronic Configuration: [He]2s22p4Common Oxidation States: -2 Number of Valence Electrons: 6. Lead is shiny, bluish-white, and very soft. Sodium is fairly abundant in the sun and stars, the fourth most abundant element on Earth, and the most commonly found alkali metal. In nature, chlorine is found only in a combined state, mostly as common salt (NaCl), carnallite, and sylvite. Its existence was independently confirmed by a team of West German physicists. In pyrotechnic flares, it provides a distinctive green color. Atomic Weight: (267) Melting Point: N/A Boiling Point: N/A Phase at STP: N/A Electronic Configuration: [Rn]5f146d27s2Common Oxidation States: N/A Number of Valence Electrons: 4. Natural titanium consists of five stable isotopes, and eight other unstable isotopes are known. In pure form, its an attractive metallic yellow color, but can be black, ruby, or purple in smaller quantities. It is the second most abundant element and can be extracted from natural gas. Shop Inorganic Gallium Compounds Browse All Products Containing Gallium , Atomic Weight: 69.72 Melting Point: 29.8C Boiling Point: 2403C Phase at STP: Solid Electronic Configuration: [Ar]3d104s22p1Common Oxidation States: +3 Number of Valence Electrons: 3. Silicon is present in the sun and stars and in meteorites known as aerolites. Some actinides occur naturally in seawater or minerals, but the actinides with atomic numbers 95 to 104 are man-made, created using particle accelerators. Discovered in 1879, thulium occurs in a number of minerals, including monazite. Eight isotopes have been reported, two with metastable states. Atomic Weight: (252) Melting Point: N/A Boiling Point: N/A Phase at STP: N/A Electronic Configuration: [Rn]5f117s2Common Oxidation States: +3 Number of Valence Electrons: 2. Chlorine is a member of the halogen or salt-forming group of elements. Dysprosium was discovered in 1886, but neither the metal or its oxide were available until 1950. It conducts heat and electricity, reflects infrared rays, and is mostly unaffected by air and chemicals. Molybdenum oxidizes at elevated temperatures. Indium is critical to modern technology, especially in the semiconductor industry. Its a primordial nuclide found in most rocks, soils, and minerals like thorite, thorianite, and monazite. The original name of the element, lutecium, was changed to lutetium in 1949. Phosphorus was discovered in 1669 and exists in four or more allotropic forms, including white (or yellow), red, and black (or violet). Shop Inorganic Ytterbium Compounds Browse All Products Containing Ytterbium , Atomic Weight: 173.04 Melting Point: 819C Boiling Point: 1196C Phase at STP: Solid Electronic Configuration: [Xe]4f146s2Common Oxidation States: +3,2 Number of Valence Electrons: 2. Crystalline silicon, the second allotropic form of the element, was first prepared in 1854. Tellurium and its compounds are likely toxic. It is not found free in nature, but as orthoboric acid in volcanic spring waters and as borates. More often found as the telluride of gold (calaverite) or combined with other metals, it can be found naturally.
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