What are the properties and uses of gallium?
What are the properties and uses of gallium?
It has important uses in Blu-ray technology, mobile phones, blue and green LEDs and pressure sensors for touch switches. Gallium readily alloys with most metals. It is particularly used in low-melting alloys. It has a high boiling point, which makes it ideal for recording temperatures that would vaporise a thermometer.
What are 3 properties of gallium?
Chemical properties of gallium – Health effects of gallium – Environmental effects of gallium
| Atomic number | 31 |
|---|---|
| Density | 5.1 g.cm-3 at 20°C |
| Melting point | 29.8 °C |
| Boiling point | 2204 °C |
| Vanderwaals radius | 0.161 nm |
Does gallium have chemical properties?
gallium (Ga), chemical element, metal of main Group 13 (IIIa, or boron group) of the periodic table. It liquefies just above room temperature. Properties of gallium….gallium.
| atomic number | 31 |
|---|---|
| melting point | 29.78 °C (85.6 °F) |
| boiling point | 2,403 °C (4,357 °F) |
| specific gravity | 5.904 (at 29.6 °C [85.3 °F]) |
| oxidation state | +3 |
Does gallium melt in your hand?
Melts In Your Hands, Not On Your Table. The element gallium is an unexpected metal—it’s a soft, silvery-white metal that is solid at room temperature (similar to aluminum) but it can literally melt in the palm of your hand.
Is gallium a physical or chemical property?
Gallium is a chemical element with Ga as its symbol. It belongs to group 13, periodic number 4 of the periodic table. Its atomic number is 31. Gallium is a blue-gray metal with a orthorhombic crystalline structure.
Is gallium a conductor or insulator?
Electrical Type of the elements
| Hydrogen | N/A | Conductor |
|---|---|---|
| Copper | Conductor | Conductor |
| Zinc | Conductor | Conductor |
| Gallium | Conductor | Conductor |
| Germanium | Semiconductor | Conductor |
What physical properties does gallium have?
Characteristics: Gallium is a silvery, glass-like, soft metal. It sits close to the non-metals in the periodic table and its metallic properties aren’t as obviously metallic as most other metals. Solid gallium is brittle and is a poorer electrical conductor than lead.
Is gallium poisonous to handle?
Gallium metal is considered safe to play with and handle, and is considered non-toxic in its elemental form.
Can gallium conduct heat?
Gallium is a shiny, silvery blue metal with an appearance similar to Aluminum. Gallium is solid at room temperature and conducts heat and electricity poorly.
What is the freezing point of gallium?
85.58°F (29.76°C)
Gallium/Melting point
What are the properties of gallium?
Properties Of Gallium This metal can be easily extracted as a by-product from iron pyrites, zinc blende, germanite, and bauxite. It is solid at room temperature but when it comes in contact with cesium, mercury, and rubidium it becomes liquid (when heated slightly).
Can gallium be used as a thermometer?
Because gallium is a liquid at room temperature and is considered to be non-toxic, the medical industry can use gallium as a substitute for mercury in liquid thermometers. One of its other properties, its silvery color, makes gallium a great metal of choice to form metal alloys.
Where does gallium liquefy at room temperature?
It liquefies just above room temperature. Properties of gallium. Gallium was discovered (1875) by French chemist Paul-Émile Lecoq de Boisbaudran, who observed its principal spectral lines while examining material separated from zinc blende.
Is gallium toxic to humans?
Gallium is a silvery-white liquid at room temperature. Ingestion of this material may be toxic. It is corrosive to aluminum. If exposed to high temperatures, gallium may emit toxic fumes which may form a corrosive alkaline solution with water.
