LEARNING OBJECTIVES In this article, author has explained the discovery, occurrence, properties, applications of fluorine. Here are also some facts about fluorine explained by author. Fluorine is the most reactive element. It is the lightest weight and small size member of the halogens. Fluorine is the toxic pale yellow diatomic gas. Due to high electronegativity, … Read more
LEARNING OBJECTIVES In this article, author has explained the discovery, abundance, properties and uses of helium element. Helium is the second most abundant element in the universe. It is a colorless, tasteless, odorless, and monoatomic noble gas. It is present at the top of the noble gas group and is the least reactive of all … Read more
Written by Adeel Abbas Introduction to Beryllium? The lightest member of the family of alkaline earth metals has the atomic number of four and is in the periodic table. Its compounds are highly toxic and can cause cancer. The metal is soft and silvery-white. There are more than 30 mineral species that contain a beryl, bertrandite, … Read more
Written by Adeel Abbas Lithium is the lightest of all metals and is found in Group 1 of the periodic table. It has the symbol Li and an atomic number of 3. It is a silver-white metal that is very reactive and flammable. Lithium is part of the alkali metal group and can be found … Read more
Written by Adeel Abbas Chlorine is a chemical element with the symbol Cl and atomic number 17. The second-lightest of the halogens, it appears between fluorine and bromine in the periodic table and its properties are mostly intermediate between them. Chlorine is a yellow-green gas at room temperature. in periodic table chlorine is present as … Read more
Hydrogen is the lightest and most abundant element in the universe. It is found in stars, interstellar gas, and comets. In terms of its physical properties, hydrogen is a colorless, odorless, tasteless gas that is extremely flammable. It has the lowest melting point and boiling point of all elements. Discovery of Hydrogen element Hydrogen gas … Read more
Written by Adeel Abbas Sodium is a metal, located in the first column or group of metals. This sodium atom has 11 electrons and it must have one valence electron outside its outer shell to give energy for bonding with other atoms. The word sodium comes from the English word soda, and its symbol is … Read more
Written by Adeel Abbas Mercury (chemical symbol Hg, atomic number 80) is a heavy, silvery metal with a low melting point. It should not be confused with quicksilver. The other elemental form of mercury-known as the red form-is actually a mineral known as cinnabar that has been used by humans since antiquity for decorative purposes. … Read more