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An atom is the smallest unit of matter that retains the properties of an element. It consists of a nucleus containing protons and neutrons, surrounded by electrons in orbitals.

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Definition of bonded atom?

A bonded atom is an atom that is linked to another atom or atoms through the sharing or transfer of electrons, forming a chemical bond. These bonds can be covalent, where electrons are shared, or ionic, where electrons are transferred from one atom to another. Bonded atoms together form molecules or compounds.


Who came up with a definition of an atom?

The concept of the atom was proposed by ancient Greek philosophers Leucippus and Democritus in the 5th century BCE, suggesting that matter is composed of indivisible particles. The modern definition of an atom, as the smallest unit of a chemical element, was further developed by scientists like John Dalton, J.J. Thomson, and Ernest Rutherford in the late 19th and early 20th centuries.


What two things are always equal within an atom?

The number of protons in the atom's nucleus and the total number of electrons in the electron shells of that atom.


What is the definition of isortopes?

Isotopesare variants of atoms of a particular chemical element, which have differing numbers of neutrons. Atoms of a particular element by definition must contain the same number of protons but may have a distinct number of neutrons which differs from atom to atom, without changing the designation of the atom as a particular element.


What is an atom that donates an electron called?

A substance that can donate a lone pair of electrons is called a Lewis base. The definition of a Lewis base is a compound or ionic species that can donate an electron pair to an acceptor compound.