Chem Vocab quiz April Flashcards
Coordination Number
the number of ions of opposite charge that surround each ion in a crystal
Electron dot structure
Depicts valence electrons as dots around the atomic symbol.
Ionic bond
Electrostatic attraction that binds oppositely charged ions together.
Metallic bond
An attraction between metal atoms that loosely involves many electrons
Octet rule
Atoms react by gaining or losing electrons so as to acquire a stable configuration.
Valence electron
Is the highest occupied energy level of an atom.
Bonding orbital
A molecular orbital whose energy is lower than that of the atomic orbital from which it is formed.
Dipole
A molecule that has two electrically charged regions.
Double covalent bond
A bond in which two pairs of electrons are shared by double two atoms.
Hydrogen bond
A relatively strong intermolecular force in which a hydrogen atom that is covalently bonded to a very electronegative atom.
Molecular orbital
An orbital resulting from the overlapping of atomic orbital when two atoms combine.
Non polar covalent bond
The weakest kind of intermolecular attraction; this attraction is thought to be caused by the motion of electrons.
Polar covalent bond
two different atoms are joined by a covalent bond unequally
Polar molecule
A molecule in which one or more atoms is slightly negative and one or more is slightly positive.
Single covalent bond
a type of chemical bond formed by the sharing of one pair of electrons between two atoms. It is a strong bond that holds atoms together in molecules.
