Fizikos terminų žodynas : lietuvių, anglų, prancūzų, vokiečių ir rusų kalbomis. – Vilnius : Mokslo ir enciklopedijų leidybos institutas. Vilius Palenskis, Vytautas Valiukėnas, Valerijonas Žalkauskas, Pranas Juozas Žilinskas. 2007.
Atom — The atom is the smallest unit of an element that retains the chemical properties of that element. An atom has an electron cloud consisting of negatively charged electrons surrounding a dense nucleus. The nucleus contains positively charged… … Wikipedia
Atom — The smallest part of any material that cannot be broken up by chemical means. Each atom has a center (the nucleus) which contains protons and neutrons. Electrons orbit around the nucleus. The atom is primarily empty space. If the nucleus of an… … Medical dictionary
atom — /at euhm/, n. 1. Physics. a. the smallest component of an element having the chemical properties of the element, consisting of a nucleus containing combinations of neutrons and protons and one or more electrons bound to the nucleus by electrical… … Universalium
Mass spectrometry — (MS) is an analytical technique that measures the mass to charge ratio of charged particles.[1] It is used for determining masses of particles, for determining the elemental composition of a sample or molecule, and for elucidating the chemical… … Wikipedia
Mass number — The mass number (A), also called atomic mass number or nucleon number, is the total number of protons and neutrons (together known as nucleons) in an atomic nucleus. Because protons and neutrons both are baryons, the mass number A is identical… … Wikipedia
Atom — • Primarily, the smallest particle of matter which can exist Catholic Encyclopedia. Kevin Knight. 2006. Atom Atom † … Catholic encyclopedia
Atom probe — The atom probe is an atomic resolution microscope used in materials science that was invented in 1967 by Erwin Müller, J. A. Panitz, and S. Brooks McLane [cite journal|last=Müller|first=Erwin W.|authorlink=Erwin Müller|coauthors=John A. Panitz, S … Wikipedia
Atom (Ryan Choi) — Atom Ryan Choi as the Atom. Art by Eddy Barrows. Publication information Publisher DC Comics … Wikipedia
mass number — n. Physics Chem. the number of neutrons and protons in the nucleus of an atom: the approximate mass of a given nucleus is obtained by multiplying the mass number by the fundamental unit of mass, 1.6605 × 10 24 grams (1/ 12 the mass of C12 atom) … English World dictionary
The Value of Science — is a book by the French mathematician, physicist, and philosopher Henri Poincaré. It was published in 1905. The book deals with questions in the philosophy of science and adds detail to the topics addressed by Poincaré s previous book, Science… … Wikipedia
