EL 7- Blood, Sweat And Seas

Question 1

What is ionic bonding between?

Answer 1

Metals and non-metals

Question 2

Define lattice

Answer 2

Regular 3-dimensional arrangement of particles in a solid

Question 3

How do ions formed from ionic bonding ‘stuck together’?

Answer 3

Strong electrostatic attraction

Question 4

What does it mean when an anion name ends in -ate?

Answer 4

1 or more non-metals bonded to oxygen

Question 5

What kind of ions do group 1 elements form?

Answer 5

+1 ions (cations)

Question 6

Are ionic substances soluble?

Answer 6

• dissolve in polar solvents (H2O)

- do NOT dissolve in non-polar solvents, no regions of positive/negative charge, no new bonds form

Question 7

Do ionic substance conduct electricity?

Answer 7

• solids do NOT

- molten/aqueous solution DOES; electrons can move and carry charge

Question 8

What is metallic bonding between?

Answer 8

Metals

Question 9

Define giant metallic lattice

Answer 9

3D structure of positive metal ions and delocalised electrons held together by strong metallic bonds

Question 10

Is mp and bp of metallic lattice high or low?

Answer 10

• high

- lots of energy needed to break strong metallic bonds

Question 11

Are metallic lattices soluble?

Answer 11

• insoluble in polar and non-polar

Question 12

Can metallic lattices conduct electricity?

Answer 12

Yes; delocalised electrons carry charge

Question 13

Give properties of metallic lattices

Answer 13

• ductile; can be stretched
• malleable; hammered into shapes
• can be alloyed; mixed with other metals

Question 14

A substance has a high boiling point, poor solubility in polar and non polar substances and does not conduct electricity. What structure may this substance have?

Answer 14

Giant covalent