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2.2: Atomic Number, Mass Number, and Atomic Mass Unit
The atomic mass unit (u or amu) is a relative unit based on a carbon-12 atom with six protons and six neutrons, which is assigned an exact value of 12 amu's (u's). This is the standard unit for atomic or molecular mass, and 1 amu is thus 1/12 th the mass of a 12 C atom. This is obviously very small. 1 amu = 1.66054x10-27Kg = 1.66054x10-24 g.
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Tantalum Ta (Element 73) of Periodic Table-Periodic Table
Nuclear Properties of Tantalum Half Life: Stable (Infinity) Lifetime: Stable (Infinity) Quantum Number: 4 F 3/2 Neutron cross section (Brans): 20.5 Neutron Mass Absorption: 0.0041 Isotopes: 177 Ta 178 Ta 179 Ta 180 Ta 180m Ta 181 Ta 182 Ta 183 Ta
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· tantalum (Ta), chemical element, bright, very hard, silver-gray metal of Group 5 (Vb) of the periodic table, characterized by its high density, extremely high melting point, and excellent resistance to all
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· There are 118 elements on the periodic table. Each element is identified by the number of protons in its atoms. This number is the atomic number. The periodic table lists the elements in order of increasing atomic number. Each element has a symbol, which is one or two letters. The first letter is always capitalized.
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:Ta ChemicalTantalum Electrons
Tantalum (Ta)-Periodic Table
Tantalum is a chemical element of the periodic table with chemical symbol Ta and atomic number 73 with an atomic weight of 180.948 u and is classed as transition metal and is
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Tantalum (Ta)-Element Information, Facts, Properties, Uses
Element 73 of Periodic table is Tantalum with atomic number 73, atomic weight 180.9479. Tantalum, symbol Ta, has a Body Centered Cubic structure and Gray color. Tantalum is a Transition Metal element. It is part of group 5 (vanadium family). Know everything about Tantalum Facts, Physical Properties, Chemical Properties, Electronic configuration
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· Atomic mass of Sodium (Na) 22.990 23 12 Atomic mass of Magnesium (Mg) 24.305 24 13 Atomic mass of Aluminum (Al) 26.982 27 14 Atomic mass of Silicon (Si) 28.085 28 15 Atomic mass of Phosphorus (P) 30.974
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· Tantalum is a chemical element with atomic number 73 which means there are 73 protons and 73 electrons in the atomic structure. The chemical symbol for Tantalum is Ta. The atom consist of a small but massive nucleus surrounded by a cloud of rapidly moving electrons. The nucleus is composed of protons and neutrons.
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Tantalum-EniG. Periodic Table of the Elements
143. Relative atomic mass: 180.947 88 (2) Tantalum was discovered by Anders Gustaf Ekeberg (SE) in 1802. The origin of the name comes from the Greek word Tantalos meaning father of Niobe in Greek mythology, (tantalum is closely related to niobium in the periodic table). It is a rare, grey, heavy, hard but ductile, metal with a high melting
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· Atomic Number of Oxygen. Oxygen is a chemical element with atomic number 8 which means there are 8 protons and 8 electrons in the atomic structure. The chemical symbol for Oxygen is O. The atom consist of a small but massive nucleus surrounded by a cloud of rapidly moving electrons. The nucleus is composed of protons
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Periodic Table of Elements-PubChem
PubChem is providing this periodic table page in order to help navigate abundant chemical element data available in PubChem. When exploring the table or list views on this page, please note the links to dedicated pages for each element. These individual element summary pages contain a lot of additional information as well as references.
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· Therefore, the order of the number of electrons in each shell of the tantalum(Ta) atom is 2, 8, 18, 32, 11, 2. Electrons can be arranged correctly through orbits from elements 1 to 18. The electron configuration of an element with an atomic number greater than 18 cannot be properly determined according to the Bohr atomic model.
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:Ta ChemicalPeriodic TableTantalum FactsAnders Ekeberg · tantalum (Ta), chemical element, bright, very hard, silver-gray metal of Group 5 (Vb) of the periodic table, characterized by its high density, extremely high melting point, and excellent resistance to
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· Atomic Number of Calcium. Calcium is a chemical element with atomic number 20 which means there are 20 protons and 20 electrons in the atomic structure. The chemical symbol for Calcium is Ca. The atom consist of a small but massive nucleus surrounded by a cloud of rapidly moving electrons. The nucleus is composed of protons
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Tantalum, Ta, atomic number 73 | Institute for Rare Earths and
Tantalum [ˈtantalum] is a chemical element with the symbol Ta and the atomic number 73; in the periodic table it is in the fifth subgroup or vanadium group. It is a rarely occurring, ductile, graphite-gray, shiny transition metal. Tantalum is mainly used for capacitors with high capacitance and at the same time small size.
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· Tantalum is a classified transition metal and its symbol is ‘Ta’. Tantalum is the 73rd element of the periodic table so its atomic number is 73. The atomic number of an element is equal to the number of protons and electrons in that element. Therefore, a tantalum atom has seventy-three protons and seventy-three electrons.
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:Periodic TableAtomic Number
Tantalum (Ta) [73] — Chemical Element — Periodic Table
Get the facts about element Tantalum (Ta) [73] from the periodic table. Find physical data, electron configuration, chemical properties, aggregation states, isotope data (including
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:Tantalum Atomic NumberTantalum SymbolTransition Metal
Tantalum | Ta (Element)-PubChem
Tantalum is a chemical element with symbol Ta and atomic number 73. Classified as a transition metal, Tantalum is a solid at room temperature.
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· Tantalum (Ta) is a gray coloured metal that has the atomic number 73 in the periodic table. It is a Transition metal in Group 5. It has the symbol Ta. Tantalum is a blue gray very hard metal that has the
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Chemical Elements.com-Tantalum (Ta)
Symbol: Ta Atomic Number: 73 Atomic Mass: 180.9479 amu Melting Point: 2996.0 C (3269.15 K, 5424.8 F) Boiling Point: 5425.0 C (5698.15 K, 9797.0 F) Number of Protons/Electrons: 73 Number of Neutrons: 108
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· Atomic Number of Gold. Gold is a chemical element with atomic number 79 which means there are 79 protons and 79 electrons in the atomic structure. The chemical symbol for Gold is Au. The atom consist of a small but massive nucleus surrounded by a cloud of rapidly moving electrons. The nucleus is composed of protons
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· Atomic Number of Tin. Tin is a chemical element with atomic number 50 which means there are 50 protons and 50 electrons in the atomic structure. The chemical symbol for Tin is Sn. The atom consist of a small but massive nucleus surrounded by a cloud of rapidly moving electrons. The nucleus is composed of protons and neutrons.
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· The atomic number is the number of protons found in the nucleus of an atom, which uniquely identifies its element. The atomic number is also called the proton number. It is denoted by the symbol Z and is the subscript in atomic notation. The symbol Z comes from the German word zahl, which means numeral, or atomzahl, which means
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· Atomic Number 73 Symbol Ta Element Category Transition Metal Phase at STP Solid Atomic Mass [amu] 180.9479 Density at STP 16.65 g/cm3 Electron Conf. [Xe] 4f14 5d3 6s2 Oxidation States +5 Electron Affinity 31
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Tantalum-Properties, Health effects & Uses of Tantalum
Ta Atomic Number 73 Atomic Mass 180.948 g.mol-1 Discovered by Anders Gustav Ekeberg in 1802 Chemical Properties of Tantalum Group 5 Melting point 3017 C, 5463 F, 3290 K Period 6 Boiling point 5455 C, 9851 F, 5728 K Block d Density (g cm−3) 16.4 73
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· periodic table, in chemistry, the organized array of all the chemical elements in order of increasing atomic number —i.e., the total number of protons in the atomic nucleus. When the chemical elements are thus arranged, there is a recurring pattern called the “periodic law” in their properties, in which elements in the same column (group
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:Ta ChemicalPeriodic TableThe Editors of Encyclopaedia Britannica
Tantalum-Element information, properties and uses | Periodic
Element Tantalum (Ta), Group 5, Atomic Number 73, d-block, Mass 180.948. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images. Tantalum was reported as a new metal in 1802 by Anders Gustav Ekeberg at Uppsala University
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Atomic Number of Elements from 1 to 50
Atomic Number Chemical Symbol Element Name Atomic Weight (u) 1 H Hydrogen 1.008 2 He Helium 4.002602 3 Li Lithium 6.94 4 Be Beryllium 9.0121831 5 B Boron 10.81 6 C Carbon 12.011 7 N Nitrogen 14.007 8 O Oxygen 15.999 9 F Fluorine 18.99840316 10
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Periodic Table-Ptable
Atomic Symbol Name Weight 1 1 H Hydrogen 1.008 2 He Helium 4.0026 2 3 Li Lithium 6.94 4 Be Beryllium 9.0122 5 B Boron 10.81 6 C Carbon 12.011 7 N Nitrogen 14.007
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· The atomic number Z or nuclear charge number of a chemical element is defined as the number of protons in its atomic nucleus [1]. Ta 73 W 74 Re 75 Os 76 Ir 77 Pt 78 Au 79 Hg 80 Tl 81 Pb 82 Bi 83 Po 84 At 85
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