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an ionic species having a negative charge.
what is an anion
the total number of protons and neutrons in a nucleus.
mass number
a quantum of radiant energy with a visible wavelength.
photon
the number of protons in the nucleus of an atom.
atomic number
mole/molecule
a standard scientific unit for measuring large quantities of very small entities such as atoms, molecules, or other specified particles.
a stable subatomic particle occurring in all atomic nuclei.
proton
An ion with net positive charge, having more protons than electrons.
cation
neutron
a subatomic particle of about the same mass as a proton but without an electric charge.
unified atomic mass unit
1/12 of the mass of an unbound neutral atom of carbon-12 in its nuclear and electronic ground state and at rest.
a stable subatomic particle with a charge of negative electricity, found in all atoms.
electron
the central and most important part of an object, movement, or group, forming the basis for its activity and grow
nucleus
valence electron
an electron of an atom, located in the outermost shell of the atom, that can be transferred to or shared with another atom.
each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei.
isotope
a mathematical function that describes the wave-like behavior of an electron, electron pair.
orbital
atom
the basic unit of a chemical element.