(a(i))[1]
State which electronic structure, A, B, C, D or E, corresponds to an atom in Group III of the Periodic Table.
(a(ii))[1]
State which electronic structure, A, B, C, D or E, corresponds to an atom of a noble gas.
(a(iii))[1]
State which electronic structure, A, B, C, D or E, represents an atom that forms a stable ion with a single positive charge.
(a(iv))[1]
State which electronic structure, A, B, C, D or E, represents an atom that has only two electron shells.
(a(v))[1]
State which electronic structure, A, B, C, D or E, represents an atom with a proton number of 16.
(b)[3]
Complete the table so that it shows the numbers of electrons, neutrons and protons in the silicon atom and sodium ion shown.