Metallic bonding

Question 1

What are the forces in a Giant Metallic Lattice?

Answer 1

Strong electrostatic forces of attraction between positive ions and delocalized electrons

Question 2

What are the forces in a Giant Ionic Lattice?

Answer 2

Strong electrostatic forces of attraction between oppositely charged ions

Question 3

What are the properties of metals?

Answer 3

-Shiny
-Malleable and ductile
-High melting points
-Good conductors of heat and electricty

Question 4

What are the properties of non-metals?

Answer 4

-Dull
-Brittle
-Usually low melting points
-Poor conductors of heat and electricity

Question 5

Why are metals malleable and ductile?

Answer 5

Because the layers of ions can slide over each other

Question 6

What happens when a group 1 metal is dropped into water?

Answer 6

-Effervescence
-Metal floats and moves across the surface of water
-Metal eventually disappears

Question 7

What additional reaction happens when potassium is dropped into water?

Answer 7

A lilac flame is produced

Question 8

What is the relative reactivity of lithium vs potassium?

Answer 8

-Potassium is more reactive
-More shells of electrons
-Weaker attraction to its outer electrons
-So it can lose them more easily

Question 9

Explain what you would see when a piece of sodium is exposed to air

Answer 9

Its shine would fade and it would turn dull gray