Αποτελέσματα Αναζήτησης
9 Νοε 2023 · These ready-to-use worksheets are perfect for teaching kids about Platinum. Platinum is a dense, lustrous, and precious metal known for its remarkable corrosion resistance, making it highly valued for various industrial and jewelry applications.
Physical and Chemical Changes and Properties of Matter Worksheet. Classify the following as chemical change (cc), chemical property (cp), physical change (pc), or physical property (pp). __pp__ Heat conductivity. __cp__ Silver tarnishing. __pc__ sublimation. __pc__ magnetizing steel.
28 Απρ 2021 · The platinum group metals or PGMs are a cluster of six transition metals on the periodic table. They are noble and precious metals with chemical and physical properties similar to that of platinum and occurring in the same ore deposits. The platinum group metals are rare, durable, useful, and highly valuable.
Element Platinum (Pt), Group 10, Atomic Number 78, d-block, Mass 195.084. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images.
17 Μαΐ 2022 · Physical and chemical properties. Physically, platinum is heavy, soft, malleable (easy to work—only silver and gold are easier to shape), and ductile (easy to draw into wires) and has a fairly high melting point (~1770°C or 3220°F). Chemically, it's often described as a noble metal because it is so unreactive.
21 Αυγ 2020 · Platinum metal has a number of useful properties, which explains its application in a wide range of industries. It is one of the densest metal elements—almost twice as dense as lead—and very stable, giving the metal excellent corrosion resistant properties.
Definition, mass & chemical names. Platinum is a precious and strong metal and has been known since ancient times. It was formally discovered in 1753 in South America. History and Discovery. Platinum is an ancient metal, as in around 1200 BC, it was identified as a contamination in gold in ancient Egypt.