modelling compounds

Question 1

name 2 reasons why is a bord-rutherford diagram is useful

Answer 1

• it shows what happens during the formation of ionic and covalent compounds
• shows electron arrangements

Question 2

why is a ball- and- stick model useful?

Answer 2

it shows the overall shape of a molecule

Question 3

why is the shape of a molecule important?

Answer 3

the shape influences the properties of the compound

Question 4

what does a space- filling model do?

Answer 4

shows the overall shape of a molecule and the relative sizes of atoms; it is the most accurate