🔹 Basic Information Copper is one of the oldest metals used by humans. It is shiny, reddish-brown, and known for being an excellent conductor of electricity and heat. It’s also easily shaped, which makes it very versatile in daily life. 🔸 Chemical Properties Copper reacts slowly with oxygen to form a greenish layer called patina…

🔹 Basic Information Selenium is a nonmetal with properties similar to sulfur. It exists in different forms — including shiny gray crystals or red powder — and it plays a surprising role in electronics, health, and industry. 🔸 Chemical Properties Selenium is moderately reactive and forms compounds like selenides and selenates. It behaves both like…

🔹 Basic Information Arsenic is a metalloid, which means it has properties of both metals and nonmetals. It occurs naturally in the Earth’s crust and is famous (or infamous) for being both toxic and useful. 🔸 Chemical Properties Arsenic forms compounds like arsenides, arsenates, and arsenites. It can bond with both metals and nonmetals and…

🔹 Basic Information Bromine is a dark reddish-brown liquid and is one of only two elements that are liquid at room temperature (the other is mercury). It belongs to the halogen family, known for their strong reactivity. 🔸 Chemical Properties Bromine is highly reactive and easily forms compounds called bromides with many elements, especially metals.…

🔹 Basic Information Krypton is a noble gas, which means it’s non-reactive and very stable. It’s found in tiny amounts in the air and is used in special lighting and science equipment. No, it’s not from Superman’s planet — but the name was inspired by the Greek word “kryptos”, meaning hidden. 🦸‍♂️✨ 🔸 Chemical Properties…

🔹 Basic Information Rubidium is a highly reactive, soft metal that belongs to the alkali metals group. It’s rarely found in large amounts but is very active chemically, especially with water and air! 🔸 Chemical Properties Rubidium has one electron in its outer shell, making it extremely reactive — just like its alkali metal cousins…

🔹 Basic Information Strontium is a soft, silvery metal that’s part of the alkaline earth metals family. It’s known for its bright red flame when burned and is often used in fireworks and flares! 🎆 🔸 Chemical Properties Strontium is highly reactive, especially with water and air. It quickly forms a white oxide layer and…

🔹 Basic Information Yttrium is a silvery, soft metal often grouped with the rare earth elements, even though it’s technically a transition metal. It’s not found free in nature — instead, it’s extracted from minerals like xenotime and monazite. 🔸 Chemical Properties Yttrium typically forms compounds in the +3 oxidation state. It reacts slowly with…