Metallic Bonding

Question 1

Cation

Answer 1

Is an ion with a positive charge

Question 2

Electronegativity

Answer 2

Is a measure of the tendency of an atom to attract a bonding pair of electrons

Question 3

Delocalised electrons

Answer 3

Is an electron in a atom, ion or molecule not associated with any single atom or a single covalent bond

Question 4

Malleable

Answer 4

Is when the metal is able to be hammered or pressed into shape without breaking or cracking

Question 5

Ductile

Answer 5

Is when metal is able to be drawn out into a thin wire (able to be deformed without losing toughness; pliable, not brittle)

Question 6

High tensile strength

Answer 6

The tensile strength of a material is the maximum amount of tensile stress that it can take before failure, for example breaking. The stress a material can withstand without permanent deformation

Question 7

Lustrous

Answer 7

Having a reflective and shiny surface

Question 8

High density

Answer 8

A substance with a high degree of compactness

Question 9

Alloy

Answer 9

Is a metal made by combining two or more metallic elements, especially to give greater strength or resistance to corrosion

Question 10

Substitutional alloy

Answer 10

Examples of substitutional alloys include bronze and brass, in which some of the copper atoms are substituted with either tin or zinc atoms

Question 11

Interstitial alloy

Answer 11

With the interstitial mechanism, one atom is usually much smaller than the other, so cannot successfully replace an atom in the crystals of the base metal

Question 12

Explain the Metallic bonding model

Answer 12

G

Question 13

Electrostatic attraction

Answer 13

Is a negatively charged atom is attracted to a positively charged atom