Table of Contents
- 1 Is polonium a conductor?
- 2 What is the conductivity of an element?
- 3 Is polonium paramagnetic or diamagnetic?
- 4 What type of element is polonium?
- 5 What do you mean by conductivity?
- 6 Is polonium soluble in water?
- 7 Why is it important to know the properties of polonium?
- 8 How is the melting point of polonium related to selenium?
Is polonium a conductor?
Polonium has a position in the periodic table that could make it a metal, a metalloid or a nonmetal. It is classed as a metal as its electrical conductivity decreases as its temperature rises….
| Discovery date | 1898 |
|---|---|
| Allotropes | α-Po, β-Po |
What is the conductivity of an element?
Conductivity refers to the ability of a material to transmit energy. There are different types of conductivity, including electrical, thermal, and acoustical conductivity. The most electrically conductive element is silver, followed by copper and gold.
Which element has highest conductivity?
Silver
Silver has the highest electrical conductivity of all metals. In fact, silver defines conductivity – all other metals are compared against it. On a scale of 0 to 100, silver ranks 100, with copper at 97 and gold at 76.
What are the physical properties of polonium?
polonium (Po), a radioactive, silvery-gray or black metallic element of the oxygen group (Group 16 [VIa] in the periodic table)….polonium.
| atomic number | 84 |
|---|---|
| melting point | 254 °C (489 °F) |
| boiling point | 962 °C (1,764 °F) |
| density | 9.4 g/cm3 |
| oxidation states | −2, +2, +3(?), +4, +6 |
Is polonium paramagnetic or diamagnetic?
Magnetic Type of the elements
| Hydrogen | Diamagnetic | Thallium |
|---|---|---|
| Helium | Diamagnetic | Lead |
| Lithium | Paramagnetic | Bismuth |
| Beryllium | Diamagnetic | Polonium |
| Boron | Diamagnetic | Astatine |
What type of element is polonium?
metal
Polonium is located in Group 16 and period 6 in the periodic table of elements. It’s classified as a metal because polonium’s electrical conductivity decreases as its temperature rises, according to the Royal Society of Chemistry.
How do you determine conductivity?
To calculate the conductivity of a solution you simply multiply the concentration of each ion in solution by its molar conductivity and charge then add these values for all ions in solution.
How do you calculate conductivity?
Calculate the electrical conductivity from the resistance, length and area of the current. The resistivity is given as p = RA/l where p is the resistivity, R is the resistance, A is the area and l is the length. The conductivity is s = 1/p where s is the conductivity.
What do you mean by conductivity?
Definition of conductivity : the quality or power of conducting or transmitting: such as. a : the reciprocal of electrical resistivity. b : the quality of living matter responsible for the transmission of and progressive reaction to stimuli.
Is polonium soluble in water?
Polonium is practically insoluble in water and soluble in dilute mineral acids. At ordinary temperatures, it oxidizes slowly in air, forming its basic oxide. The metal dissolves in dilute hydrochloric acid, forming pink-red polonium. It dissolves in concentrated nitric acid and aqua regia, oxidizing to the Po4+ state.
What elements does polonium bond with?
Under controlled conditions polonium will react with chlorine, bromine and iodine to form tetrahalides. Polonium will dissolve in concentrated hydrochloric acid, sulphuric acid and nitric acid, to form solutions containing Po(II).
How is the thermal conductivity of polonium measured?
Polonium – Thermal Conductivity. Thermal conductivity of Polonium is — W/(m·K). The heat transfer characteristics of a solid material are measured by a property called the thermal conductivity, k (or λ), measured in W/m.K. It is a measure of a substance’s ability to transfer heat through a material by conduction.
Why is it important to know the properties of polonium?
The fact that its electrical conductivity decreases as the temperature increases places polonium among the metals rather than the metalloids or nonmetals. Because polonium is highly radioactive—it disintegrates to a stable isotope of lead by emitting alpha rays, which are streams of positively charged particles—it must be handled with extreme care.
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. Melting point of Polonium is 254°C. Boiling point of Polonium is 962°C.
Where can you find polonium in the world?
Polonium is a very rare natural element. It is found in uranium ores but it is uneconomical to extract it. It is obtained by bombarding bismuth-209 with neutrons to give bismuth-210, which then decays to form polonium. All the commercially produced polonium in the world is made in Russia.