Chemistry

Lithium Hydroxide is a chemical compound. Its chemical formula is LiOH.  It is a white hygroscopic crystalline material. It contains lithium and hydroxide ions. It used in gas-purification systems…

Sodium hydroxide is an alkali which is also known as caustic soda. Caustic means “burning” and caustic soda takes its name from the way it…

Calcium hydroxide, also known as slaked lime, is a chemical compound with the formula Ca(OH)2. It dissolves slightly in water.  It can be dehydrated (remove the water) to…

The Avogadro constant (symbols: L, NA) is the number of particles (usually atoms or molecules) in one mole of a given substance. Its value is equal to 6.02214129(27)×1023 mol−1. It is the number of units in one mole…

A relative atomic mass (symbol: Ar) is a measure of how heavy atoms are. It is the ratio of the average mass of one atom…

An atomic mass unit (abbreviated: amu, u, or Da) is a unit of measurement that is used to measure the mass of atoms. The atomic…

The atomic number (symbol: Z) of an atom is the number of protons in the nucleus of the atom. Atoms of each element contain a…

Atomic orbitals are the places surrounding the nucleus of an atom where the electrons are most likely to be at any given time. They are the…

Atomic Nucleus The atomic nucleus is a tiny massive entity at the center of an atom. It is the central area of the atom. It…

Radioactive decay Radioactive decay is the spontaneous breakdown of an atomic nucleus resulting in the release of energy and matter from the nucleus. Some elements,…

The atom is the basic unit of matter. An atom is the smallest unit of matter that retains all of the chemical properties of an…

An atomic mass is the mass of a single atom of a chemical element. the mass of an atom of a chemical element expressed in…