Contents
What phase is platinum?
solid
| Platinum | |
|---|---|
| Phase at STP | solid |
| Melting point | 2041.4 K (1768.3 °C, 3214.9 °F) |
| Boiling point | 4098 K (3825 °C, 6917 °F) |
| Density (near r.t. ) | 21.45 g/cm3 |
What type of element is platinum?
platinum metals
platinum (Pt), chemical element, the best known and most widely used of the six platinum metals of Groups 8–10, Periods 5 and 6, of the periodic table. A very heavy, precious, silver-white metal, platinum is soft and ductile and has a high melting point and good resistance to corrosion and chemical attack.
Is Tin stable or unstable?
Ordinary tin is composed of nine stable isotopes; 18 unstable isotopes are also known. Ordinary tin is a silver-white metal, is malleable, somewhat ductile, and has a highly crystalline structure….
| Atomic Number: | 50 |
|---|---|
| Radioactive Isotopes | 29 |
| Stable Isotopes | 10 |
What type of solid is formed by tin?
It has two main allotropes: at room temperature, the stable allotrope is β-tin, a silvery-white, malleable metal; at low temperatures it is less dense grey α-tin, which has the diamond cubic structure. Metallic tin does not easily oxidize in air….
| Tin | |
|---|---|
| Symbol | “Sn”: from Latin stannum |
| Main isotopes of tin |
What is the neutrons of platinum?
The nucleus consists of 78 protons (red) and 117 neutrons (orange). 78 electrons (white) successively occupy available electron shells (rings). Platinum is a transition metal in group 10, period 6, and the d-block of the periodic table.
How is platinum processed?
Refining platinum ore is a costly and laborious process. Froth generated at the top of a flotation cell concentrates the platinum particles. The dried powder is then heated to extremely high temperatures to remove impurities. Air is blown over the matte that remains after smelting to eliminate unwanted iron and sulfur.
What platinum means?
Platinum symbolizes durability, purity and a high status in our society, making it a strong choice as a statement for a wedding or engagement ring.
What period is tin in?
Period 5
Fact box
| Group | 14 | Melting point |
|---|---|---|
| Period | 5 | Boiling point |
| Block | p | Density (g cm−3) |
| Atomic number | 50 | Relative atomic mass |
| State at 20°C | Solid | Key isotopes |
Does tin rust or corrode?
Tin is too expensive. Also, tin does not ‘rust’, although it oxidizes. Your rust is iron oxide. Galvanized steel is steel with a thin zinc coating, likely hot-dip galvanization.
What is tin metal made of?
WHAT IS TIN? Tin is soft, silver-blue metal derived from the mineral cassiterite. It is a base metal that is commonly blended with other metals to create alloys. Common tin alloys include bronze and pewter.
How is tin produced?
Production of Tin Tin is most often produced from the mineral cassiterite, which is made up of about 80% tin. Tin is smelted at temperatures of up to 2500°F (1370°C) with carbon to produce low purity tin and CO2 gas. It is then refined to high purity (>99%) tin metal through boiling, liquation, or electrolytic methods.
What is gold’s normal phase?
Classified as a transition metal, Gold is a solid at room temperature.
Which is the most stable form of tin?
Two allotropes of tin occur near room temperature. The first form of tin is called gray tin and is stable at temperatures below 13.2°C (55.76°F). There are few, if any, uses for gray tin.
What’s the importance of platinum as a metal?
Platinum as a metal speaks of prestige, value and power. An album has gone platinum, platinum wedding anniversaries, and highly prized platinum jewellery such as rings and Rolex watches. Platinum is a very different substance to a chemist.
What kind of acid can platinum be dissolved in?
Platinum has broad chemical resistance although the metal may be dissolved in aqua regia, a highly acidic mixture of nitric and hydrochloric acids, forming chloroplatinic acid, and has an extremely high melting point in excess of two thousand degrees centigrade.
What’s the name of the first form of tin?
The first form of tin is called gray tin and is stable at temperatures below 13.2°C (55.76°F). There are few, if any, uses for gray tin. At temperatures above 13.2°C, gray tin slowly turns into tin’s second form, white tin.