Chemistry

Nonmetal or non-metal is a chemical element that does not have the properties of a metal. These elements are omnipresent and essential for life. Some…

Neurotransmitters are chemical messengers. They are the molecules used by the nervous system to transmit messages between neurons, or neurons to muscles. Their job is…

A molecule is the smallest amount of a chemical substance that can exist. It is the smallest particle in a chemical element or compound that…

Mole is the unit of the amount in chemistry. It is the SI unit of measurement used to measure the number of things, usually atoms or molecules. One mole of something…

When you combine two or more materials, you form a mixture. In chemistry, a mixture is a substance that is made up of two or…

An alloy is a uniform mixture. It is usually produced by melting the mixture of ingredients. It is made up of two or more chemical…

A metallic bond is the sharing of many detached electrons between many positive ions, where the electrons act as a “glue” giving the substance a…

A coordination complex is an inorganic chemical compound where a central atom (usually a metal) has an electron shell which permits it to combine with…

Metallurgy is the study of metals. Alloys (mixtures of metals) are also studied. People who study or work with metals are called metallurgists. It is…

Some chemical elements are called metals. It is a class of substances characterized by high electrical and thermal conductivity as well as by malleability, ductility, and…

Metabolic rate is the rate of metabolism, the amount of energy used by an animal per unit of time. The metabolic rate of the body is the…

Malleability is a substance’s ability to deform under pressure (compressive stress). It is the ability of a substance, usually a metal, to be deformed or…