For Atom we have terms and definitions in 25 topics. The topics are Anthromorphemics, Anthropology, Biology, Cancer, Carpet, Chemistry, Day Spa, Electric Power, Energy, Environmental Toxins, Explosives, Feeds, HIV and AIDs, Huntingtons Disease, Import Cars, Internet, Natural Gas, Nuclear, Nuclear Science, Oceanography, Physical Geography, Podcast, Robotics, Science and Universe.

A building block of matter.
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A building block of matter.
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The smallest part of an element that can enter into various combinations with atoms of other elements.
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The tiny particles of which matter is composed. They consist of a central nucleus made up of positively charged protons and chargeless neutrons, surrounded by a cloud of negatively charged electrons.
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Individual component of a molecule
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The smallest object that retains properties of an element. Composed of electrons and a nucleus (containing protons and neutrons).
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The smallest quantity of an element.
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A particle of matter which cannot be broken up by chemical means. Atoms have a nucleus consisting of positively-charged protons and uncharged neutrons of the same mass. The positive charges on the protons are balanced by a number of negatively-charged electrons in motion around the nucleus.
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The smallest unit of an element consisting of a dense positively charged nucleus (of protons and neutrons) orbited by negatively charged electrons.
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The smallest particle of an element having the chemical properties of that element; the fundamental building block of matter.
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The atom is the smallest unit of a chemical Element having the properties of that element. An atom contains several kinds of particles. Its central core, the nucleus, consists of positively charged particles, called Protons, and uncharged particles, called Neutrons. Surrounding the nucleus and orbiting it are negatively charged particles, called Electrons. Each atom has an equal number of protons and electrons. The nucleus occupies only a tiny fraction of an atom's volume but contains almost all of its mass. Electrons in the outermost orbits determine the atom's chemical and electrical properties. The number of protons in an atom's nucleus is called the Atomic Number. All atoms of an element have the same atomic number and differ in atomic number from atoms of other elements. The total number of protons and neutrons combined is the atom's Mass Number. Atoms containing the same number of protons but different numbers of neutrons are different forms, or Isotopes, of the same element. Atomic Weight.
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An XML-based file format. Although Atom is not the same as RSS, it has similar functions. FeedForAll will convert Atom feeds to RSS v2 feeds.
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This is the tiniest particle of matter that retains the chemical properties of an element; atoms are typically composed of neutral subatomic particles (neutrons), positively-charged particles (protons) and negatively-charged particles (electrons).
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The smallest existing particle of a pure element that can exist and still maintain the properties (or chemical characteristics) of that element. It is made up of protons, neutrons, and electrons. Example: Nitrogen is an element. Nitrogen molecules (N2) are made up of two nitrogen atoms (N). Many elements exist in nature as molecules of one or more atom.
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[1] A basic unit of matter consisting of protons, neutrons, and electrons arranged in such a way that retains its separate unique characteristics. [2] The smallest of the building blocks of the universe. [3] The smallest division of an element still retaining all of the original properties of the element.
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An evolving protocol for syndication and sharing of content.
Atom is being developed as a succesor to and improvement over RSS and is more complex than RSS while offering support for additional features such digital signatures, geographic location of author, possibly security/encryption, licensing, etc.
Like RSS, Atom is an XML-based specification.
See also: RSS, XML
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The smallest complete particle of an element which can be obtained yet retain all physical and chemical properties of the element.
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A particle of matter that cannot be broken down by chemical means. Atoms have a nucleus consisting of positively charged protons and uncharged neutrons of the same mass. The positive charges on the protons are balanced by the same number of negatively charged electrons in motion around the nucleus.
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A particle of matter indivisible by chemical means. It is the fundamental building block of elements.
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The smallest particle of a chemical element. Atoms are the building blocks of everything around us - the oceans, the atmosphere, even we are made of trillions of atoms. They are not the smallest thing though! We now know that even atoms can be broken down into component parts.
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Smallest unit of an element that still maintains its chemical characteristics.
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Atom is an XML-based document format and HTTP-based protocol designed for the syndication of Web content such as weblogs and news headlines to Web sites as well asdirectly to user agents. It is based on experience gained in using the various versions of RSS. Critics have argued that it has merely created additional confusion.
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Tiny particles that combine to form all matter. Atoms are made of protons, neutrons, and electrons.
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The smallest form of an element that has all the properties of that element
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Fundamental building block of matter, consisting of a nucleus (comprising protons and neutrons and an orbiting swarm of electrons.
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