What is spectrum of cadmium?
Emission spectrum of cadmium. When atoms of an element are excited (for instance by heating), they return to their state of lowest energy by emitting radiation at specific wavelengths. Cadmium’s predominant lines (right to left) are at 6438 & 6359 angstroms (red), 5085 (green), 4800, 4678 & 4414 angstroms (blue).
What is the electron configuration of cadmium?
[Kr] 4d¹⁰5s²
Cadmium/Electron configuration
What is the atomic structure of cadmium?
The nucleus consists of 48 protons (red) and 66 neutrons (blue). 48 electrons (green) bind to the nucleus, successively occupying available electron shells (rings). Cadmium is a transition metal in group 12, period 5, and the d-block of the periodic table.
What are the chemical properties of cadmium?
Table 4-2Physical and Chemical Properties of Cadmium and Compounds a
| Property | Cadmium | Cadmium carbonate |
|---|---|---|
| Melting point | 568 °Cb | Decomposes at 950 °C |
| Boiling point | 960 °Cb | Decomposes at 950 °C |
| Density at 20 °C | 4.047g/cm3 at 25 °Ce | Crystals 8.15 g/cm3; amorphous powder 6.95 g/cm3c |
| Odor | Odorlessc | Odorless |
What is Cadmium lamp?
: a vapor lamp in which the fluorescence of cadmium vapor produces red light whose wavelength taken as 6438.4696 international angstroms is used as a standard of length.
What is cadmium atomic number?
48
Cadmium/Atomic number
What is the chemical formula of cadmium?
The resultant diatomic cadmium ion, Cd22+ (where cadmium is in the +1 oxidation state), is unstable in water and immediately disproportionates to cadmium metal and Cd2+. The most important cadmium compound is cadmium oxide, CdO.
What is the charge of cadmium?
Since there are two of Nitrates the opposing charge to Cadmium is -2. Thus to balance out the charge, Cadmium must have a charge of +2. Therefore the name of said compound is: Anhydrous Cadmium (II) Nitrate.
What is cadmium in chemistry?
cadmium (Cd), chemical element, a metal of Group 12 (IIb, or zinc group) of the periodic table.
What are the main uses for cadmium?
Cadmium became an important metal in the production of nickel-cadmium (Ni-Cd) rechargeable batteries and as a sacrificial corrosion-protection coating for iron and steel. Common industrial uses for cadmium today are in batteries, alloys, coatings (electroplating), solar cells, plastic stabilizers, and pigments.
How big is the atomic weight of cadmium?
Cadmium is an element with atomic symbol Cd, atomic number 48, and atomic weight 112.41. It is a metal and ingestion will lead to CADMIUM POISONING. Cadmium is an element with atomic symbol Cd, atomic number 48, and atomic weight 112.4.
Is it true that cadmium is not a trace metal?
Cadmium is a trace element and transitional metal that is not believed to play a role in higher biologic systems or in human nutrition. Cadmium deficiency has not been convincingly shown in humans.
Which is the limit of detection for cadmium?
The resultant limit of detection is 5.0 μ g/L. Finally, the performance of the method has been evaluated for extraction and determination of Cd (II) in salt samples at milligram per liter concentration, and satisfactory results have been obtained (RSD ≤ 2.0%). 1. Introduction
Where does cadmium come from on the periodic table?
Cadmium most often occurs in small quantities associated with zinc ores, such as sphalerite (ZnS). Greenockite (CdS) is the only mineral of any consequence bearing cadmium. Almost all cadmium is obtained as a by-product in the treatment of zinc, copper, and lead ores. It is a soft, bluish-white metal which is easily cut with a knife.