IMF

Question 1

Name properties of solid Metals

Answer 1

Low electronegativity, metallic bond- attraction between positive ions and valence electrons, good conductors, high melting points, hard, 3D arrangement of positive ions

Question 2

Properties of Ionic Solids

Answer 2

Regular alternating arrangement, does not conduct, ions are immobilised, high melting point, hard but shatters

Question 3

Properties of Network solids

Answer 3

Large lattice, extremely high melting point due to amount of covalent bonds, mostly do not conduct (except graphite),

Question 4

Properties of Molecular Solids

Answer 4

Low melting points, gases or liquids at room temperature, covalent bonding, soft, dont conduct no charge

Question 5

What are the three types of IMF?

Answer 5

Temporary Dipoles, Hydrogen Bonding, permanent dipole

Question 6

Why do temporary dipoles occur?

Answer 6

Because of random movement of electrons, we have the possibility of one side having more electrons than the other. This created a temporary dipole and can induce this in other molecules

Question 7

What influences size of temporary dipoles?

Answer 7

As the number of electrons increase inside molecules, the boiling point increases. The electron cloud is bigger therefore the greater the polarisability

Question 8

What influences hydrogen bonding?

Answer 8

Extremely electronegative elements, N O F caused more intense attractions as they are small.

Question 9

What are chemical bonds?

Answer 9

Electrostatic forces of attraction