At 0.099%, phosphorus is the most abundant pnictogen in the Earth’s crust. It rarely occurs in its elemental state or as pure ore compounds in the Earth’s crust. This website was founded as a non-profit project, build entirely by a group of nuclear engineers. Francium is an alkali metal, that has one valence electron. Rhenium is a chemical element with atomic number 75 which means there are 75 protons and 75 electrons in the atomic structure. Ruthenium is a chemical element with atomic number 44 which means there are 44 protons and 44 electrons in the atomic structure. The chemical symbol for Nobelium is No. Cadmium, 48 Cd Cadmium; Pronunciation / ˈ k æ d m i ə m / (KAD-mee-əm) Appearance: sillery bluish-gray metallic: Standard atomic weight A r, std (Cd): 112.414(4) Mass number: Cd: Cadmium … Rhodium is a chemical element with atomic number 45 which means there are 45 protons and 45 electrons in the atomic structure. Xenon is a colorless, dense, odorless noble gas found in the Earth’s atmosphere in trace amounts. Thallium is a soft gray post-transition metal is not found free in nature. Gold is thought to have been produced in supernova nucleosynthesis, from the collision of neutron stars. Radon occurs naturally as an intermediate step in the normal radioactive decay chains through which thorium and uranium slowly decay into lead. The chemical symbol for Oxygen is O. Cadmium, mass of 135 . click here for details. www.nuclear-power.net. Tellurium is a brittle, mildly toxic, rare, silver-white metalloid. Tin is a post-transition metal in group 14 of the periodic table. Plutonium is an actinide metal of silvery-gray appearance that tarnishes when exposed to air, and forms a dull coating when oxidized. Nuclear stability is a concept that helps to identify the stability of an isotope. Curium is a hard, dense, silvery metal with a relatively high melting point and boiling point for an actinide. We can determine the neutron number of certain isotope. Silver is a chemical element with atomic number 47 which means there are 47 protons and 47 electrons in the atomic structure. Lawrencium is the final member of the actinide series. Isotopes are two or more forms of an element. Fermium is a chemical element with atomic number 100 which means there are 100 protons and 100 electrons in the atomic structure. 1) You may use almost everything for non-commercial and educational use. Liquid nitrogen (made by distilling liquid air) boils at 77.4 kelvins (−195.8°C) and is used as a coolant. The difference between the neutron number and the atomic number is known as the neutron excess: D = N – Z = A – 2Z. it's symbol Cd The chemical symbol for Fluorine is F. Fluorine is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions. See also: Atomic Mass Number – Does it conserve in a nuclear reaction? Cadmium is a lustrous, silver-white, ductile, very malleable metal. Its boiling point is the lowest among all the elements. Nickel is a chemical element with atomic number 28 which means there are 28 protons and 28 electrons in the atomic structure. Indium is a chemical element with atomic number 49 which means there are 49 protons and 49 electrons in the atomic structure. Cadmium is a natural element in the earth’s crust. Uranium has the highest atomic weight of the primordially occurring elements. In nuclear industry gadolinium is commonly used as a neutron absorber due to very high neutron absorbtion cross-section of two isotopes 155Gd and 157Gd. Nearly all technetium is produced synthetically, and only minute amounts are found in the Earth’s crust. Note that, each element may contain more isotopes, therefore this resulting atomic mass is calculated from naturally-occuring isotopes and their abundance. The chemical symbol for Carbon is C. It is nonmetallic and tetravalent—making four electrons available to form covalent chemical bonds. Rubidium is a chemical element with atomic number 37 which means there are 37 protons and 37 electrons in the atomic structure. Natural boron consists primarily of two stable isotopes, 11B (80.1%) and 10B (19.9%). If you want to get in touch with us, please do not hesitate to contact us via e-mail: Discoverer: Ramsey, Sir William and Cleve, Per Teodor. Barium is a chemical element with atomic number 56 which means there are 56 protons and 56 electrons in the atomic structure. The chemical symbol for Francium is Fr. The unit of measure for mass is the atomic mass unit (amu). Cadmium(2+) is a divalent metal cation, a cadmium cation and a monoatomic dication. Tin is a chemical element with atomic number 50 which means there are 50 protons and 50 electrons in the atomic structure. For example, actinides with odd neutron number are usually fissile (fissionable with slow neutrons) while actinides with even neutron number are usually not fissile (but are fissionable with fast neutrons). Like all elements with atomic number over 100, nobelium can only be produced in particle accelerators by bombarding lighter elements with charged particles. The atomic mass is the mass of an atom. The chemical symbol for Beryllium is Be. The chemical symbol for Radon is Rn. Strontium is a chemical element with atomic number 38 which means there are 38 protons and 38 electrons in the atomic structure. All of the alkali metals have a single valence electron in the outer electron shell, which is easily removed to create an ion with a positive charge – a cation, which combines with anions to form salts. Cerium is a chemical element with atomic number 58 which means there are 58 protons and 58 electrons in the atomic structure. Chemically, sulfur reacts with all elements except for gold, platinum, iridium, tellurium, and the noble gases. Selenium is a nonmetal with properties that are intermediate between the elements above and below in the periodic table, sulfur and tellurium, and also has similarities to arsenic. Polonium is a rare and highly radioactive metal with no stable isotopes, polonium is chemically similar to selenium and tellurium, though its metallic character resembles that of its horizontal neighbors in the periodic table: thallium, lead, and bismuth. Samarium is a typical member of the lanthanide series, it is a moderately hard silvery metal that readily oxidizes in air. As a result, as the number of protons increases, an increasing ratio of neutrons to protons is needed to form a stable nucleus. Thulium is the thirteenth and third-last element in the lanthanide series. So A is the mass number, which is equal to the number of protons, that's the atomic number which we symbolized by Z, plus the number of neutrons. Promethium is a chemical element with atomic number 61 which means there are 61 protons and 61 electrons in the atomic structure. Einsteinium is the seventh transuranic element, and an actinide. Germanium is a chemical element with atomic number 32 which means there are 32 protons and 32 electrons in the atomic structure. There are only certain combinations of neutrons and protons, which forms stable nuclei. Magnesium is a chemical element with atomic number 12 which means there are 12 protons and 12 electrons in the atomic structure. The chemical symbol for Manganese is Mn. Einsteinium is a chemical element with atomic number 99 which means there are 99 protons and 99 electrons in the atomic structure. It can be observed from the chart that there are more neutrons than protons in nuclides with Z greater than about 20 (Calcium). Uranium is weakly radioactive because all isotopes of uranium are unstable, with half-lives varying between 159,200 years and 4.5 billion years. Cadmium is a soft, bluish-white metal is chemically similar to the two other stable metals in group 12, zinc and mercury. It is usually found as a mineral combined with other elements such as oxygen, chlorine, or sulfur. Potassium is a chemical element with atomic number 19 which means there are 19 protons and 19 electrons in the atomic structure. The unit of measure for mass is the atomic mass unit (amu). Carbon is a chemical element with atomic number 6 which means there are 6 protons and 6 electrons in the atomic structure. The chemical symbol for Mendelevium is Md. Vanadium is a chemical element with atomic number 23 which means there are 23 protons and 23 electrons in the atomic structure. The chemical symbol for Lanthanum is La. Many other rare types of decay, such as spontaneous fission or neutron emission are known. Discoverer: Davy, Sir H. and Thénard, L.-J. Cadmium (Cd) is a collectible resource in Mass Effect: Andromeda. Platinum is a chemical element with atomic number 78 which means there are 78 protons and 78 electrons in the atomic structure. and Gay-Lussac, L.-J. Hafnium is a lustrous, silvery gray, tetravalent transition metal, hafnium chemically resembles zirconium and is found in many zirconium minerals. In nuclear industry cadmium is commonly used as a thermal neutron absorber due to very high neutron absorption cross-section of 113Cd. Rubidium is a soft, silvery-white metallic element of the alkali metal group, with an atomic mass of 85.4678. The chemical symbol for Scandium is Sc. Platinum is one of the least reactive metals. Plutonium is a chemical element with atomic number 94 which means there are 94 protons and 94 electrons in the atomic structure. The metal is found in the Earth’s crust in the pure, free elemental form (“native silver”), as an alloy with gold and other metals, and in minerals such as argentite and chlorargyrite. The chemical symbol for Xenon is Xe. Very soft and malleable, indium has a melting point higher than sodium and gallium, but lower than lithium and tin. Cadmium is located in the d-block and 12 group of the periodic table possessing an atomic number of 48 and an atomic mass of 112.411g. The various species of atoms whose nuclei contain particular numbers of protons and neutrons are called nuclides. For other isotopes, the isotopic mass usually differs and is usually within 0.1 u of the mass number. The chemical symbol for Dysprosium is Dy. These have similar chemical properties, but palladium has the lowest melting point and is the least dense of them. Sulfur is a chemical element with atomic number 16 which means there are 16 protons and 16 electrons in the atomic structure. Melting point of Cadmium is 321 °C and its the boiling point is 765 °C. Its abundance in rocky planets like Earth is due to its abundant production by fusion in high-mass stars. The chemical symbol for Neodymium is Nd. Oxygen is a colourless, odourless reactive gas, the chemical element of atomic number 8 and the life-supporting component of the air. To identify the stability of an isotope it is needed to find the ratio of neutrons to protons. Discoverer: Coster, Dirk and De Hevesy, George Charles, Discoverer: Elhuyar, Juan José and Elhuyar, Fausto, Discoverer: Noddack, Walter and Berg, Otto Carl and Tacke, Ida. These elements, along with the chemically similar elements scandium and yttrium, are often collectively known as the rare earth elements. We assume no responsibility for consequences which may arise from the use of information from this website. Density is defined as the mass per unit volume. Like the other metals of the platinum group, ruthenium is inert to most other chemicals. The chemical symbol for Germanium is Ge. It has remarkable resistance to corrosion, even at high temperatures, and is therefore considered a noble metal. Related questions. Lanthanoids comprise the 15 metallic chemical elements with atomic numbers 57 through 71, from lanthanum through lutetium. The commercial use of beryllium requires the use of appropriate dust control equipment and industrial controls at all times because of the toxicity of inhaled beryllium-containing dusts that can cause a chronic life-threatening allergic disease in some people called berylliosis. Cadmium (atomic symbol: Cd, atomic number: 48) is a Block D, Group 12, Period 5 element with an atomic weight of 112.411. Oxygen is a chemical element with atomic number 8 which means there are 8 protons and 8 electrons in the atomic structure. Only about 5×10−8% of all matter in the universe is europium. Cerium is the second element in the lanthanide series. It is also the most corrosion-resistant metal, even at temperatures as high as 2000 °C. According to the Einstein relationship (E=mc2), this binding energy is proportional to this mass difference and it is known as the mass defect. Platinum is a dense, malleable, ductile, highly unreactive, precious, silverish-white transition metal. It explains how we use cookies (and other locally stored data technologies), how third-party cookies are used on our Website, and how you can manage your cookie options. For example, 63Cu (29 protons and 34 neutrons) has a mass number of 63 and an isotopic mass in its nuclear ground state is 62.91367 u. Neptunium is a chemical element with atomic number 93 which means there are 93 protons and 93 electrons in the atomic structure. Radon is a chemical element with atomic number 86 which means there are 86 protons and 86 electrons in the atomic structure. So in the nucleus there's only one proton and zero neutrons, so one plus zero gives us a mass number of one. Manganese is a metal with important industrial metal alloy uses, particularly in stainless steels. The atomic number of cadmium is 48 and it is indicated by symbol Cd. The elemental metal is rarely found in nature, but once isolated artificially, the formation of an oxide layer (passivation) stabilizes the free metal somewhat against further oxidation. The chemical symbol for Sodium is Na. Lithium is a chemical element with atomic number 3 which means there are 3 protons and 3 electrons in the atomic structure. Argon is the third-most abundant gas in the Earth’s atmosphere, at 0.934% (9340 ppmv). is a rare earth element with a metallic silver luster. Cerium is a soft, ductile and silvery-white metal that tarnishes when exposed to air, and it is soft enough to be cut with a knife. Holmium is a chemical element with atomic number 67 which means there are 67 protons and 67 electrons in the atomic structure. The number written to the right of the element's name is the mass number. Lawrencium is a chemical element with atomic number 103 which means there are 103 protons and 103 electrons in the atomic structure. Bismuth is a pentavalent post-transition metal and one of the pnictogens, chemically resembles its lighter homologs arsenic and antimony. How can the atomic number be determined? Chemical Formula: Cd . It is the eponym of the lanthanide series, a group of 15 similar elements between lanthanum and lutetium in the periodic table, of which lanthanum is the first and the prototype. Planets where cadmium can be found on foot: Eos Kadara Voeld Cadmium is used for a large number of … Carbon is one of the few elements known since antiquity. Convert grams Cadmium to moles or moles Cadmium to grams ›› Percent composition by element The chemical symbol for Polonium is Po. The chemical symbol for Argon is Ar. Thorium is commonly found in monazite sands (rare earth metals containing phosphate mineral). Properties of atomic nuclei (atomic mass, nuclear cross-sections) are determined by the number of protons and number of neutrons (neutron number). Naturally occurring potassium is composed of three isotopes, of which 40K is radioactive. The chemical symbol for Tantalum is Ta. All isotopes of radium are highly radioactive, with the most stable isotope being radium-226. The chemical symbol for Thulium is Tm. Uranium is a silvery-white metal in the actinide series of the periodic table. It is the fifth most abundant element in Earth’s crust and the third most abundant metal, after iron and aluminium. For example, the neutron number of uranium-238 is 238-92=146. Berkelium is a member of the actinide and transuranium element series. Europium is a moderately hard, silvery metal which readily oxidizes in air and water. Being a typical member of the lanthanide series, europium usually assumes the oxidation state +3. The Cookies Statement is part of our Privacy Policy. Fluorine is a chemical element with atomic number 9 which means there are 9 protons and 9 electrons in the atomic structure. One unified atomic mass unit is approximately the mass of one nucleon (either a single proton or neutron) and is numerically equivalent to 1 g/mol. By signing up, you'll get thousands of step-by-step solutions to your homework questions. Sodium is a soft, silvery-white, highly reactive metal. The chemical symbol for Helium is He. Samarium is a chemical element with atomic number 62 which means there are 62 protons and 62 electrons in the atomic structure. The chemical symbol for Vanadium is V. Vanadium is a hard, silvery grey, ductile, and malleable transition metal. Isotopes differ from each other according to their mass number. Tellurium is a chemical element with atomic number 52 which means there are 52 protons and 52 electrons in the atomic structure. The chemical symbol for Barium is Ba. Significant concentrations of boron occur on the Earth in compounds known as the borate minerals. These extra neutrons are necessary for stability of the heavier nuclei. Unlike most other metals, cadmium is resistant to corrosion and is used as a protective plate on other metals. Therefore, we cannot determine the neutron number of uranium, for example. Cadmium is a chemical element with atomic number 48 which means there are 48 protons and 48 electrons in the atomic structure. Main purpose of this project is to help the public learn some interesting and important information about the peaceful uses of nuclear energy. Manganese is a chemical element with atomic number 25 which means there are 25 protons and 25 electrons in the atomic structure. Neon is a colorless, odorless, inert monatomic gas under standard conditions, with about two-thirds the density of air. Only two stable nuclides have fewer neutrons than protons: hydrogen-1 and helium-3. Niobium is a chemical element with atomic number 41 which means there are 41 protons and 41 electrons in the atomic structure. One atomic mass unit is equal to 1.66 x 10-24 grams. Erbium is a silvery-white solid metal when artificially isolated, natural erbium is always found in chemical combination with other elements. Cadmium: Symbol: Cd: Atomic Number: 48: Atomic Mass: 112.411 atomic mass units: Number of Protons: 48: Number of Neutrons: 64: Number of Electrons: 48: Melting Point: 320.9° C: Boiling Point: 765.0° C: Density: 8.65 grams per cubic centimeter: Normal Phase: Solid: Family: Transition Metals: Period: 5: Cost: $6 per 100 grams Krypton is a member of group 18 (noble gases) elements. Atomic nuclei consist of protons and neutrons, which attract each other through the nuclear force, while protons repel each other via the electric force due to their positive charge. Cadmium is a chemical element with atomic number 48 which means there are 48 protons and 48 electrons in the atomic structure. Americium is a transuranic member of the actinide series, in the periodic table located under the lanthanide element europium, and thus by analogy was named after the Americas. Arsenic occurs in many minerals, usually in combination with sulfur and metals, but also as a pure elemental crystal. Tantalum is a chemical element with atomic number 73 which means there are 73 protons and 73 electrons in the atomic structure. Terbium is a silvery-white, rare earth metal that is malleable, ductile, and soft enough to be cut with a knife. When we use data that are related to certain product, we use only data released by public relations departments and allowed for use. 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