Structure and bonding

Question 1

Metallic structure is a lattice of…

Answer 1

positively charged ions surrounded by a sea of delocalised electrons

Question 2

metals have…

Answer 2

GIANT METALLIC STRUCTURE

Question 3

a metallic bond is…

Answer 3

the force of attraction between delocalise outer electrons and the positively charged metal ions

Question 4

general properties-

Malleable

Answer 4

(bendable or can be hammered into new shapes) this is because the atoms in metal structure are REGULARLY ARRANGED IN LAYERS and therefore can EASILY SLIDE OVER EACHOTHER WHEN FORCE IS APPLIED

Question 5

general properties-

Ductile

Answer 5

(can be drawn into layers)

Question 6

general properties-

high melting and boiling points

Answer 6

metallic bonds are strong so they need a lot of energy to break

Question 7

general properties-

good conductors of electricity and heat

Answer 7

because they have delocalised electrons that are free to move

Question 8

Giant ionic structure - structure

Answer 8

regular arrangement of alternating positive and negative ions

Question 9

giant ionic structure- bonding

Answer 9

electrostatic attraction between oppositely charged ions

Question 10

giant ionic structure- properties

Answer 10

• high melting point
• non conductor in solid state
• conducts in liquid state or when dissolved in water

Question 11

giant metallic structure- structure

Answer 11

regular arrangement of positive and metal ions surrounded by delocalised outer shell electrons

Question 12

giant metallic structure- bonding

Answer 12

electrostatic attraction between positive ions and negative delocalised electrons

Question 13

giant metallic structure- properties

Answer 13

• relatively high melting point
• malleable
• conducts electricity in solid and liquid state