We elaborate the uses of Arsenic and atomic properties with characteristics. Arsenic is a metallic gray-looking chemical element with an atomic number 33. Its symbol is As and it belongs to the group of metalloids and its usual state in nature is solid. Arsenic is located at position 33 on the periodic table.
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On this page you can discover the chemical properties of arsenic and information about arsenic and other elements on the periodic table such as phosphorus, antimony, seaborgium or germanium. You will also learn what arsenic is for and you will learn what its uses are through its properties associated with arsenic such as its atomic number or the usual state in which arsenic can be found.
You can see qualities of arsenic such as its melting and boiling point, its magnetic properties or what its chemical symbol is. In addition, here you will find information about its atomic properties such as the distribution of electrons in arsenic atoms and other properties.
For some elements some of this information is unknown. In these cases we show the properties attributed to them.
Properties of arsenic
Arsenic is part of the elements called metalloids or semi-metals. These types of elements have intermediate properties between metals and nonmetals. As for its electrical conductivity, this type of materials to which arsenic belongs, are semiconductors.
The state of arsenic in its natural form is solid. Arsenic is a metallic gray-looking chemical element and belongs to the group of metalloids. The atomic number of arsenic is 33. The chemical symbol for arsenic is As. The melting point of arsenic is 887 degrees Kelvin or 614.85 degrees Celsius or degrees Celsius. The boiling point of arsenic is 1090 degrees Kelvin or 817.85 degrees Celsius or degrees Celsius.
Uses of arsenic
Arsenic is a chemical element that is found along with other minerals such as sulfur and metals. It is a metalloid that generally has a metallic gray appearance. Arsenic is very toxic to most living things and there are few species of bacteria that are able to use arsenic compounds without being life threatening. If you have ever wondered what arsenic is for , here is a list of its possible uses:
- The primary use of metallic arsenic is to strengthen copper and lead alloys for use in car batteries.
- It is also used as an n-type dopant in electronic semiconductor devices (such as diodes).
- Arsenic is also used in numerous pesticides, herbicides, and insecticides, although this practice is becoming less common as more and more products of this type are banned.
- It has been used as a wood preservative due to its toxicity to insects, bacteria, and fungi.
- Arsenic is added to animal feed to prevent disease and promote growth.
- Arsenic is used in the medical treatment of cancer , such as acute promyelocytic leukemia.
- It is also used in medical solutions, such as Fowler’s solution for psoriasis.
- The arsenic-74 isotope is used as a way to locate tumors in the body. Clearer images are produced than using iodine .
- Arsenic is added in small amounts to alpha brass to make it resistant to zinc leaching . This type of brass is used to make plumbing fixtures or other items that are in constant contact with water .
Past uses of arsenic
- To create biological weapons during the First World War and the Vietnam War.
- As a stimulant during the 18th century.
- Copper acetoarsenite is used as a green pigment known under many names, including “Paris green” and “emerald green”.
- Scheele green, a copper arsenate, was used in the 19th century as a coloring agent in candy.
- Arsenic is used in optical glass. Modern glassmakers, under pressure from environmentalists, are removing it, along with lead.
Atomic properties of arsenic
The atomic mass of an element is determined by the total mass of neutrons and protons that can be found in a single atom belonging to this element. As for the position where to find arsenic within the periodic table of the elements, arsenic is in group 15 and period 4. Arsenic has an atomic mass of 74.92160 u.
The electronic configuration for arsenic is [Ar] 4s2 3d10 4p3. The electronic configuration of the elements, determines the form in which the electrons are structured in the atoms of an element. The average radius for arsenic is 115 pm, its atomic radius or Bohr radius is 114 pm, its covalent radius is 119 pm, and its Van der Waals radius is 185 pm. Arsenic has a total of 33 electrons whose distribution is as follows: In the first layer it has 2 electrons, in the second it has 8 electrons, in its third layer it has 18 electrons and in the fourth one, 5 electrons.
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Characteristics of arsenic
Below you can see a table showing the main characteristics of arsenic.
| Arsenic | ||
|---|---|---|
| Chemical symbol | Ace | |
| Atomic number | 33 | |
| Group | fifteen | |
| Period | 4 | |
| Appearance | metallic gray | |
| Block | p | |
| Density | 5727 kg / m3 | |
| Atomic mass | 74.92160 u | |
| Average radius | 115 pm | |
| Atomic radio | 114 | |
| Covalent radius | 119 pm | |
| Van der Waals radio | 185 pm | |
| Electronic configuration | [Ar] 4s2 3d10 4p3 | |
| Electrons per layer | 2, 8, 18, 5 | |
| Oxidation states | + -3.5 | |
| Oxide | slightly acidic | |
| Crystal structure | rhombohedral | |
| State | solid | |
| Melting point | 887 K | |
| Boiling point | 1090 K | |
| Heat of fusion | 34.76 kJ / mol | |
| Electronegativity | 2.18 | |
| Specific heat | 330 J / (K · kg) | |
| Electric conductivity | 3.45 × 106S / m | |
| Thermal conductivity | 50 W / (Km) | |
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