Chemical Bonding Chemical Formulas

Question 1

Compound

Answer 1

A substance that is made up of two or more different elements combined together chemically

Question 2

Octet Rule

Answer 2

When bonding occurs, atoms tend to reach an electron arrangement with eight electrons in the outermost energy level

Question 3

Ion

Answer 3

A charged atom or group of atoms

Question 4

Ionic bond definition

Answer 4

The force of attraction between oppositely charged ions in a compound. Ionic bonds are always formed by the complete transfer of electrons from one atom to another

Question 5

Molecule

Answer 5

A group of atoms joined together, it is the smallest particle of an element or compound that can exist independently

Question 6

Valency

Answer 6

The number of bonds an atom of the element forms when it reacts

Question 7

Electronegativity

Answer 7

The relative attraction that an atom in a molecule has for the shared pair of electrons in a covalent bond

Question 8

Polar covalent bond definition

Answer 8

A bond in which there is unequal sharing of the pair (or pairs) of electrons. This causes one end of the bond to be slightly positive and the other end slightly negative

Question 9

Ionic bond

Answer 9

Greater than 1.7

Question 10

Covalent bond

Answer 10

Less than or equal to 1.7

Question 11

Polar covalent

Answer 11

Greater than 0.4 and less than 1.7

Question 12

Non polar covalent bond

Answer 12

Less than or equal to 0.4

Question 13

Intramolecular bonding

Answer 13

Bonding that takes place within a molecule

Question 14

Intermolecule

Answer 14

The forces of attraction that exist between molecules.

Question 15

Van der Waals forces

Answer 15

Weak attractive forces between molecules resulting from the formation of temporary dipoles. They are the only forces of attraction between non polar molecules

Question 16

Dipole Dipole forces

Answer 16

Forces of attraction between the negative pole of one polar molecule and the positive pole of another polar molecule

Question 17

Hydrogen bond

Answer 17

Type of dipole dipole attraction between molecules in which hydrogen atoms are bonded to fluoride, oxygen and nitrogen. The hydrogen atom carries a partial positive charge and is attracted to the electronegative atom in another molecule. Thus, the hydrogen bon acts as bridge between two electronegative atoms in separate molecules

Question 18

Monovalent

Answer 18

An atom with only one electron in its outer shell so it can only make one bond