valance electrons Flashcards
are chemical substances made up of two or more elements that are chemically bound together.
compounds
PROPERTIES OF IONIC COMPOUND
- High melting point
- High boiling point
- Hard and brittle
- Soluble in water
- Conduct Electricity
ionic compounds are held together by strong electrostatic forces of attraction between oppositely charged ions.
high melting point and high boiling point
it takes a large amount of mechanical force, such as striking a crystal with a hammer, to force one layer of ions to shift relative to its neighbor.
hard and brittle
Polar SolventH2Odissociates the ionic compound by interacting with the charged ions and pulls them with a strong force of attractiion
soluble in water
ionic compounds conduct electricity when they are in a molten state or aqueous state.
conducts electricity
A lasting attraction between atoms, ions or molecules that enables the formation of chemical compounds.
chemical bonding
Are the outermost electrons which are directly involved in chemical bonding.
Valence electrons
Are the outermost electrons which are directly involved in chemical bonding.
Valence electrons
is a measure of the tendency of an atom to attract electron, the higher its value, the higher its tendency to attract electron.
electronegativity
is the energy needed to pull or remove one or more electrons from a neutral atom.
ionization energy
refers to the tendency of atoms to prefer to have eight electrons in the valence shell.
octet rule
atom or molecule that has gained or lost one or more of its valence electrons, giving it a net positive or negative electrical charge.
ions
lso called molecular bond, it is a chemical bond that involves sharing of electron pairs between atoms.
covalent bonding
ave strong energy attractions or high electronegativity compared to metals.
non metals
