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en.wikipedia.org/wiki/Atom

An atom is the smallest constituent unit of ordinary matter that has the properties of a chemical .... A consequence of using waveforms to describe particles is that it is mathematically impossible to obtain precise values for ... In the Standard Model of physics, electrons are truly elementary particles with no internal structure.

www.vtaide.com/png/atom.htm

All matter is made up of atoms. An atom is like a tiny solar system. In the center of the atom is the nucleus which is a cluster of protons and neutrons. The protons ...

www.livescience.com/37206-atom-definition.html

Jun 5, 2013 ... Atoms are the basic units of matter and the defining structure of elements. Atoms are made up of three particles: protons, neutrons and ...

socratic.org/questions/what-is-the-basic-structure-of-an-atom

Dec 4, 2016 ... An atom contains subatomic particles called protons, neutrons, and electrons. The basic structure of an atom includes a tiny, relatively massive ...

www.nyu.edu/pages/mathmol/textbook/atoms.html

Basics about atoms, including structure and behavior.

chemistry.tutorvista.com/inorganic-chemistry/structure-of-an-atom.html

The atomic structure was first described by scientists John Joseph Thomson and Ernest in 1900. This model of atom is still used as basis of modern atomic ...

chemistry.tutorcircle.com/inorganic-chemistry/structure-of-an-atom.html

Describe the Structure of an Atom; Basic Structure of an Atom; Explain the Structure of an Atom; Subatomic Structure of an Atom; Properties of an Atom; Law of ...

2012books.lardbucket.org/books/introduction-to-chemistry-general-organic-and-biological/s05-03-the-structure-of-atoms.html

State how the subatomic particles are arranged in atoms. There have been .... Describe the structure of an atom in terms of its protons, neutrons, and electrons.

www.chemistry.ohio-state.edu/~woodward/ch121/ch2_atoms.htm

Atomic Structure. The text provides a historical perspective of how the internal structure of the atom was discovered. It is certainly one of the most important ...

www.bbc.co.uk/schools/gcsebitesize/science/add_aqa_pre_2011/atomic/atomstrucrev1.shtml

A secondary school revision resource for AQA GCSE Additional Science about atomic structure and bonding.