State that: (a) Group VIII noble gases have a full outer electron shell (b) the number of outer shell electrons is equal to the group number in Groups I to VII (c) the number of occupied electron shells is equal to the period number
Draw and interpret the displayed formula of a molecule to show all the atoms and all the bonds
Describe the formation of covalent bonds in simple molecules, including ( CH_3OH ), ( C_2H_4 ), ( O_2 ), ( CO_2 ) and ( N_2 ). Use dot-and-cross diagrams to show the electronic configurations in these and similar molecules