The particles that substances are made of

Question 1

Describe molecular structures

Answer 1

Consist of molecules formed when atoms share electron.

Form due to intermolecular forces between molecules, consisting of non-metallic atoms which are covalently bonded.

Question 2

Describe covalent network structures

Answer 2

Consist of atoms.

Form due to covalent bonds between atoms to form giant repeating lattices of covalently bonded atoms.

Question 3

Describe ionic structures

Answer 3

Consist of positive and negative ions.
Formed when the electrons of atoms are transferred from one atom to another.
Due to ionic bonding.
Composed of metallic and non-metallic elements.

Question 4

Describe metallic structures

Answer 4

Consist of positive ions and delocalised valence electrons.
Formed when metal atoms lose their outer electrons to form a lattice of regularly space positive ions and the outer electrons form a delocalised pool of electrons, surrounding the positive ions.
Due to metallic bonding.

Question 5

Molecular structures are _____ structures

Answer 5

Covalent