S4.6.2 Glossary

Question 1

Alloy

Answer 1

A mixture where at least one of the substances is a metal

Question 2

Compound

Answer 2

A substance made of more than one type of atom, chemically bonded together

Question 3

Covalent bond

Answer 3

When non-metal atoms are held together by one or more shared pairs of electrons

Question 4

Delocalised electron

Answer 4

Electrons which are not held in shells, but are free to move

Question 5

Dot and cross diagram

Answer 5

A diagram showing the sharing or transfer of electrons

Question 6

Electron

Answer 6

A subatomic particle with a negative charge and almost no mass

Question 7

Electrostatic force

Answer 7

The attraction of oppositely charged particles

Question 8

Element

Answer 8

A substance made of only one type of atom

Question 9

Empirical formula

Answer 9

The relative numbers of each element in that compound

Question 10

Giant covalent structure

Answer 10

A substance made of many non-metal atoms covalently bonded together

Question 11

Intermolecular force

Answer 11

Forces which hold molecules together

Question 12

Intramolecular force

Answer 12

Forces which hold atoms together, within molecules

Question 13

Ionic bond

Answer 13

The electrostatic attraction which keeps positive metal ions and negative non-metal ions together

Question 14

Ionic lattice

Answer 14

The arrangement of alternating positive and negative ions in a solid

Question 15

Ions

Answer 15

Charged particles

Question 16

Malleable

Answer 16

Capable of being hammered or pressed into a new shape

Question 17

Metallic bond

Answer 17

The electrostatic attraction which keeps positive metal ions and negative delocalised electrons together

Question 18

Molecule

Answer 18

Two or more atoms held together by chemical bonds

Question 19

Monomer

Answer 19

A molecule which can join together to form long chains

Question 20

Polymer

Answer 20

A large molecule made of repeating monomers