The atomic mass of nitrogen is 14.00674 atomic mass units. Nitrogen is a gas that has the atomic number 7 and the chemical symbol N. There are 7 neutrons, 7 protons and 7 electrons in a nitrogen atom. Nitrogen also has stable isotopes, such as N-14 and N-15.Know More
Daniel Rutherford discovered this non-metal element in 1772. Its name comes from the Greek words "nitron" and "genes," meaning "nitre forming." The Earth’s atmosphere contains about 78 percent of this element. To obtain nitrogen in pure form, liquefied air goes through a process called fractional distillation.
A main application for nitrogen is in the manufacture of ammonia. Ammonia is important for making substances like fertilizers, protective shielding in welding applications, refrigeration and explosives.Learn more about Atoms & Molecules
The atomic theory formulated by the British chemist John Dalton proposes that atoms are indivisible particles comprising all matter; atoms of the same element share identical properties, including shape, size and mass; atoms of an element are unique and vary from the atoms of different elements; atoms are the fundamental units of a chemical reaction; atoms are conserved and can neither be created nor destroyed; and atoms combine in simple, fixed proportions to produce compound atoms, known as molecules. Dalton is commonly referred to as the father of the modern atomic theory.Full Answer >
The atomic mass of copper is 63.546 atomic mass units. The chemical element has an atomic number of 29 and an atomic symbol of Cu.Full Answer >
The atomic mass of chromium is 51.9961 atomic mass units. The atomic mass is the average mass of an atom of a particular element. It is roughly the number of protons plus neutrons in an atom of the element.Full Answer >
The molecular weight of benzoic acid is 122.12 atomic mass units. The molecular weight of a compound is calculated by adding together the atomic weight of each atom of each element contained in the molecule. The chemical formula for benzoic acid is C7H6O2.Full Answer >