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An is an atom or group of bonded atoms that has a positive or negative charge
ion
indicates the relative number of each type of atom necessary to form a single unit of a compound.
a chemical formula
For compounds that form molecules, shows the types and number of atoms necessary to form a single molecule.
the molecular formula
occur when we give and take valence electrons
ionic bonds
A charged group of covalently bonded atoms is known as a
polyatomic ion
The energy required to remove one electron from a neutral atom of an element
ionization energy.
The ability to attract electrons are called .
electronegativity
form because electrons are lost, gained or shared between atoms.
Chemical compounds
is an electron configuration in which only the valence electrons are shown, indicated by dots.
electron dot notation
The chemical bonding that results from the attraction between metal atoms and the surrounding sea of electrons is called
metallic bonding
are simply identified by the name of the element. For example, K is a potassium atom and K⁺ is a potassium ion
monoatomic cation
is any chemical compound whose simplest units are molecules.
A molecular compound
If carbon is present, then it’s the
central atom
is a mutual electrical attraction between the nuclei and valence electrons of different atoms that binds the atoms together.
a chemical bond
is a simple chemical rule of thumb that states that atoms tend to combine in such a way that they each have 8 electrons in their balance shells, giving them the same electronic configuration as a noble gas
is a neutral group of atoms that are held together by covalent bonds.
a molecule
The electrons available to be lost, gained or shared in the formation chemical compounds are referred to as
valence electrons
never on the center
hydrogen
are identified by dropping the end of the elements name and adding the suffix -ide. For example Cl is chlorine atom and Cl⁻ is chloride ion.
moatomic anions
can’t conduct electricity, but if it melts or dissolves in water, then the ion can conduct electricity.
Solid ionic compound
results from the sharing of electrons pairs between 2 atoms.
covalent bonds
form attractions between positive and negative ions. (metal + nonmetal) They don’t share, they transfer.
ionic bonds
any ion that is formed from a single atom
Monatomic Ions
BeF2 ?
draw
An is composed of positive and negative ions
ionic compound