# data[].attributes.body
The "type of chemical bond between atoms in a metallic element" that is formed by the valence electrons "moving freely through the metal lattice".

# data[].attributes.body
The smallest physical unit of an element or compound that has "one or more like atoms in an element and two or more different atoms in a compound".

# data[].attributes.body
The bond that is formed by the "sharing of a pair of electrons by two atoms".

# data[].attributes.body
The "symmetrical three-dimensional arrangement of atoms inside a crystal".

# data[].attributes.body
A "electrically charged atom or group of atom" that is formed by the loss of gain of one or more electrons. A positive ion (a cation ion) is created by electron loss. As a cation, it is also attracted to the cathode in electrolysis. A negative ion (an anion ion) is created b electron gain and is "attracted to the anode". "The valence of an ion is equal to thenumber of electrons lost or gained and is indicated by a plus sign forcations and a minus sign for anions".

# data[].attributes.body
The "electrostatic bond between two ions" that is formed by the transfer of one or more electrons.

# data[].attributes.body
An electron of an atom located at the outermost shell (the valence shell) of the atom. It can be "transferred to or shared with another atom".

# data[].attributes.body
A "lasting attraction between atoms that enables the formation of chemical compounds." It may make the "electrostatic force of attraction between atoms with opposite charges, or through the sharing of electrons as in the covalent bonds".

# data[].attributes.body
Any "rearrangement of electrons in two atoms that generates a force, causing the atoms to be bound to each other," therefore, forming a molecule.

# data[].attributes.body
Any of the following "electronegative" elements: fluorine, chlorine, iodine, bromine, and astatine.

# data[].attributes.body
Any of the following: helium, neon, argon, krypton, xenon, and radon.

# data[].attributes.body
The mass of an isotope of an element measured in units based on the mass of "one hydrogen atom taken as a unit or on 1/16 the mass of one oxygen atom, but after 1961 based on the mass of the carbon-12 atom".

# data[].attributes.body
The "integer nearest in value to the atomic weight of an atom and equal to the number of nucleons in the nucleus of the atom".

# data[].attributes.body
Any of the "two or more forms of a chemical element" that have the same number of protons in the nucleus, atomic number, but have different numbers of neutrons in the nucleus, atomic weight. "There are 275 isotopes of the 81 stable elements, in addition to over 800 radioactive isotopes, and every element has known isotopic forms". The isotope of a single element has almost ALL identical properties.

# data[].attributes.body
The number of positive charges, protons, in the nucleus of an atom of a element and the number of electrons surrounding the nucleus.

# data[].attributes.body
A "elementary particle having no charge". Its mass is slightly greater than that of a proton. It is also "a constituent of the nuclei of all atoms except those of hydrogen".

# data[].attributes.body
(Aka "dalton") A unit of mass that is "equal to 1/12 the mass of the carbon-12 atom". It is used to express the mass of "atomic and subatomic particles".

# data[].attributes.body
A positively charged "elementary particle that is a fundamental constituent of all atomic nuclei". It is the lightest and stable "baryon". It also has a charge with equal  to that of electron.

# data[].attributes.body
A group of electrons "revolving" around an atom's nucleus. It may look like a tiny cloud, but it's really a group of electrons.

# data[].attributes.body
The positively charged mass within an atom that is made of neutrons and protons. It has most of the mass but only takes up a small fraction of the "volume of an atom".

# data[].attributes.body
(Aka "Negatron") An "elementary particle that is a fundamental constituent of matter". It has a negative charge and exists independently or "as the component outside the nucleus of an atom".

# data[].attributes.body
The "smallest component of an element having the chemical properties of the element" that has a nucleus with the combinations of neutrons, protons and one or more electrons "bound to the nucleus by electrical attraction. The "number of protons determines the identity of the element".