1.4 Bonding Flashcards
Ionic Bond
Is a bond formed by the electrical attraction between positive and negative ions
Covalent Bond
Has a pair of electrons with opposed spin shared between two atoms with each atom giving one electron
Coordinate Bond
Is a covalent bond in which both shared electrons come from one of the atoms
Explain Ionic Bonding
One or more Electrons is given from one atom to the other resulting in a cation and anion which attract each other together electrically
Explain Covalent Bonding
Each atom gives one electron to form a bond pair in which the electron spins are opposed
Coordinate Bonding
One atom gives both electrons to form a bond pair with another atom in which the electron spins are opposed
Electronegativity
Is a measure of the electron-attracting power of an atom in a covalent bond
What is the most electronegative element?
Fluorine
What is the second most electronegative element?
Oxygen
Polar Bond
Has one end of the bond with a slightly positive charge an the other end with a slightly negative charge i.e. dipole. Overall the molecule is still neutral
In general what is the limit for difference in electronegativity before bonds become polar?
0.4
Intermolecular Bonding
Is the weak bonding holding the molecules together. It governs the physical properties of the substance
Intramolecular Bonding
Is the strong bonding between the atoms in the molecule and governs its chemistry
What are temporary dipoles?
They are the formation of temporary dipole due to the movement of the cloud of electrons around a molecule
Van Der Waals Forces
Include all types of intermolecular force whether dipole or induced dipole