Cadmium: Element Name: 112.41: Average Atomic Mass: The atomic weight is basically a measurement of the total number of particles in an atom 's nucleus including both protons and neutrons. Interactive periodic table showing names, electrons, and oxidation states. What is the symbol of another isotope of cadmium with 65 neutrons? So the first step is to locate the atomic mass on the periodic table, and round the value to the nearest whole number. PART C Like mercury below it, cadmium and its compounds are highly toxic. In the case of Cadmium the abbreviated electron configuration is [Kr] 4d10 5s2. Some chemists don’t regard cadmium as a true transition metal, because it has a full shell of d electrons. It has the symbol Rg. Visualize trends, 3D orbitals, isotopes, and mix compounds. Name: Cadmium Symbol: Cd Atomic Number: 48 Atomic Mass: 112.411 amu Melting Point: 320.9 °C (594.05 K, 609.62 °F) Boiling Point: 765.0 °C (1038.15 K, 1409.0 °F) Number of Protons/Electrons: 48 Number of Neutrons: 64 Classification: Transition Metal Crystal Structure: Hexagonal Density @ 293 K: 8.65 g/cm 3 Color: Silvery Atomic Structure Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images. Some are hard to memorise (or predict), so what is the electron configuration of an atom of Cd? Zinc sits above cadmium in the periodic table. He noted that these particular samples changed colour on heating, which pure zinc carbonate does not. Cadmium was discovered by Friedrich Stromeyer in 1817 from an impurity in some samples of zinc carbonate. Cadmium-112 Isotope Applications: Cadmium-112 isotope (Cd-112 isotope, 112Cd isotope). Enter your answers numerically separated by commas. Cadmium (atomic symbol: Cd, atomic number: 48) is a Block D, Group 12, Period 5 element with an atomic weight of 112.411. Np, Nn, Ne = 48,64,48 (thats the answer for that one) PART B. Element Cadmium (Cd), Group 12, Atomic Number 48, d-block, Mass 112.414. The chemical symbol for Cadmium is Cd . Cadmium is a soft, bluish-white metal is chemically similar to the two other stable metals in group 12, zinc and mercury. I know this answer is 113 Cd. The number of electrons in each of Cadmium's shells is 2, 8, 18, 18, 2 and its electron configuration is [Kr] 4d 10 5s 2. Electrons have a specific form of distribution (or configuration) in every atom, even Cadmium. Fully descriptive writeups. He was persistent to follow this observation through and he eventually isolated some cadmium metal by roasting and reduction of the sulphide. Cadmium is a naturally-occurring chemical element with atomic number 48 which means there are 48 protons and 48 electrons in the atomic structure. 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